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Can someone debug my C codes and and the matrix tranpose..help pls

Discussion in 'C' started by askmewhy25, Jan 24, 2010.

  1. askmewhy25

    askmewhy25 New Member

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    Code:
    //This program can evaluate a polynomial, solve for statistical algorithms
    //and do matrix operations.
    #include <stdio.h>
    #include <conio.h>
    #include <math.h>
    #include <stdlib.h>
    
    //Start Program
    main(){
    
        int selection;
        //Variables for Polynomial Evaluation    
        int n,w,x,y,z,QA;
        double poly[11],polysum;
        //Variables for Statistical Algorithms
        int SA,a,b,sum=0,data[10];
        float mean;
        double calc,sd;    
        //Variables for Matrix Operation
        int m1[3][3],i,j,k,m2[3][3],add[3][3],mult[3][3],r1,c1,r2,c2,MO;
        
        //Menu Selection Screen    
        do{
             system("cls");
             printf("Menu Selection Screen\n\n");
             printf("1 - Polynomial Evaluation\n");
             printf("2 - Statistical Algorithms\n");
             printf("3 - Matrix Operation\n");
             printf("4 - Exit\n");
             
             scanf("%d",&selection);
             switch(selection){
                               case 1://Polynomial Evaluation Screen
                                    do{
                                       do{
                                          system("cls");
                                          printf("Polynomial Evaluation\n\n");
                                          printf("Enter the Order of Polynomial (max. 10): ");
                                          scanf("%d",&n);
                                          if(n>10||n<1){
                                                        system("cls");
                                                        printf("Invalid input. Please try again!!!\n");
                                                        printf("Please press the spacebar to continue!!");
                                                        getche();
                                                        }
                                          }while(n>10||n<1);
                                       y=n;
                                       z=n;
                                       for(w=0;w<y+1;w++){
                                           printf("Please enter the constant for X raised to the %dth: ",y--);
                                           scanf("%lf",&poly[w]);
                                           }
                                       printf("Please enter the constant for X raised to the 0th: ");
                                       scanf("%lf",&poly[10]);
                                       printf("Enter the value of X: ");
                                       scanf("%d",&x);   
                                       for(w=0;w<n+1;w++){
                                           polysum+=poly[w]*pow(x,n);
                                           n--;
                                           }
                                       polysum=polysum+poly[10];
                                       printf("The evaluated value of the %dth Order Polynomial  %lf\n", z, polysum);
                                       printf("Please press the spacebar to continue!!\n");
                                       getche();
                                       do{
                                          system("cls");
                                          printf("Do you want to repeat the computation?\n\n");
                                          printf("1 - Yes\n");
                                          printf("2 - No\n");
                                          scanf("%d", &QA);
                                          switch(QA){
                                                     case 1:
                                                          break;
                                                     case 2:
                                                          break;
                                                     default:
                                                             system("cls");
                                                             printf("Invalid input. Please try again!!!\n");
                                                             printf("Please press the spacebar to continue!!");
                                                             getche();
                                                             break;   
                                                     }
                                          }while(QA>2||QA<1);
                                       polysum=0;
                                       }while(QA==1);
                                       break;
                               case 2://Statistical Algorithms Screen
                                    do{
                                       system("cls");
                                       printf("Statistical Algorithms\n\n");
                                       printf("1 - Mean\n");
                                       printf("2 - Standard Deviation\n");
                                       printf("3 - Summation of data\n");
                                       printf("4 - Go Back to Menu Selection Screen\n");
                                       
                                       scanf("%d", &SA);
                                       switch(SA){
                                                  case 1:
                                                       do{
                                                          system("cls");
                                                          printf("Mean\n\n");
                                                          printf("Enter the Number of Data (max. 10): ");
                                                          scanf("%d", &b);
                                                          if(b>10||b<1){
                                                                  system("cls");
                                                                  printf("Invalid input. Please try again!!!\n");
                                                                  printf("Please press the spacebar to continue!!");
                                                                  getche();
                                                                  }
                                                          }while(b>10||b<1);
                                                          for(a=0;a<b;a++){
                                                              printf("Enter the Actual Values of Data %d: ", a+1);
                                                              scanf("%d",&data[a]);
                                                              }
                                                          for(a=0;a<b;a++){
                                                              sum=sum+data[a];
                                                              }
                                                          mean=(float)sum/a;
                                                          printf("The Mean of the Data is %f\n",mean);
                                                          printf("Please press the spacebar to continue!!");
                                                          sum=0;
                                                          mean=0;
                                                          getche();
                                                          break;
                                                  case 2:
                                                       do{
                                                          system("cls");
                                                          printf("Standard Deviation\n\n");
                                                          printf("Enter the Number of Data (max. 10): ");
                                                          scanf("%d", &b);
                                                          if(b>10||b<1){
                                                                  system("cls");
                                                                  printf("Invalid input. Please try again!!!\n");
                                                                  printf("Please press the spacebar to continue!!\n");
                                                                  getche();
                                                                  }
                                                          }while(b>10||b<1);
                                                          for(a=0;a<b;a++){
                                                              printf("Enter the Actual Values of Data %d: ", a+1);
                                                              scanf("%d",&data[a]);
                                                                 }
                                                          for(a=0;a<b;a++){
                                                              sum=sum+data[a];
                                                                 }
                                                          mean=(float)sum/a;
                                                          for(a=0;a<b;a++){
                                                              calc+=pow((data[a]-mean),2);
                                                                 }
                                                          sd=sqrt(calc/b);
                                                          printf("The Standard Deviation the Data is %lf\n",sd);
                                                          printf("Please press the spacebar to continue!!");
                                                          sum=0;
                                                          mean=0;
                                                          getche();
                                                          break;
                                                  case 3:
                                                       do{
                                                          system("cls");
                                                          printf("Summation of Data\n\n");
                                                          printf("Enter the Number of Data (max. 10): ");
                                                          scanf("%d", &b);
                                                          if(b>10||b<1){
                                                                  system("cls");
                                                                  printf("Invalid input. Please try again!!!\n");
                                                                  printf("Please press the spacebar to continue!!");
                                                                  getche();
                                                                  }
                                                          }while(b>10||b<1);
                                                          for(a=0;a<b;a++){
                                                              printf("Enter the Actual Values of Data %d: ", a+1);
                                                              scanf("%d",&data[a]);
                                                              }
                                                          for(a=0;a<b;a++){
                                                              sum=sum+data[a];
                                                              }
                                                          mean=(float)sum/a;
                                                          printf("The Summation of the Data is %d\n",sum);
                                                          printf("Please press the spacebar to continue!!");
                                                          sum=0;
                                                          mean=0;
                                                          getche();
                                                          break;
                                                     case 4:
                                                          break;
                                                     default:
                                                             system("cls");
                                                             printf("Invalid Input. Please try again!!!\n");
                                                             printf("Please press the spacebar to continue!!");
                                                             getche();
                                                             break;
                                                  }
                                       }while(3>SA>1);           
                               case 3://Matrix Operation Screen
                                    system("cls");
                                    printf("Matrix Operation\n\n");
                                    printf("1 - Matrix Addition\n");
                                    printf("2 - Matrix Multiplication\n");
                                    printf("3 - Transpose of Matrix\n");
                                    printf("4 - Go Back to Menu Selection Screen\n");
                                    scanf("%d", &MO);
                                    switch(MO){
                                               case 1:
                                                    printf("Matrix Addition\n\n");
                                                    printf("Enter the number of rows of the first matrix (max 3): ");
                                                    scanf("%d",&r1);
                                                    printf("Enter the number of columns of the first matrix (max 3): ");
                                                    scanf("%d",&c1);
                                                    printf("Enter the number of rows of the second matrix (max 3): ");
                                                    scanf("%d",&r2);
                                                    printf("Enter the number of columns of the second matrix (max 3): ");
                                                    scanf("%d",&c2);
                                                    if(r2==c1){
                                                               printf("Enter rows and columns of First Matrix \n");
                                                               printf("Row wise\n\n");
                                                               for(i=0;i<r1;i++){
                                                                      printf("Enter the elements for row %d: ", i+1);
                                                                      for(j=0;j<c1;j++)
                                                                      scanf("%d",&m1[i][j]);
                                                                      }
                                                               printf("You have entered the First Matrix as follows:\n");
                                                               for(i=0;i<r1;i++){
                                                                  for(j=0;j<c1;j++)
                                                                  printf("%d\t",m1[i][j]);
                                                                  printf("\n");
                                                                  }
                                                               printf("Enter rows and columns of Second Matrix \n");
                                                               printf("Again row wise\n");
                                                               for(i=0;i<r2;i++){
                                                                  printf("Enter the elements for row %d: ", i+1);
                                                                  for(j=0;j<c2;j++)
                                                                  scanf("%d",&m2[i][j]);
                                                                  }
                                                               printf("You have entered the Second Matrix as follows:\n");
                                                               for(i=0;i<r2;i++){
                                                                  for(j=0;j<c2;j++)
                                                                  printf("%d\t",m2[i][j]);
                                                                  printf("\n");
                                                                  }
                                                               if(r1==r2&&c1==c2){
                                                                  printf("Now we add both the above matrix \n");
                                                                  printf("The result of the addition is as follows;\n");
                                                                  for(i=0;i<r1;i++){
                                                                     for(j=0;j<c1;j++){
                                                                        add[i][j]=m1[i][j]+m2[i][j];
                                                                        printf("%d\t",add[i][j]);
                                                                     }
                                                                     printf("\n");
                                                                  }
                                                               }
                                                               else{
                                                                  printf("Addition cannot be done as rows or columns are not equal\n");
                                                               }
                                                    }
                                                    getche();
                                                    break;
                                               case 2:
                                                    printf("Matrix Multiplication\n\n");
                                                    printf("Enter the number of rows of the first matrix (max 3): ");
                                                    scanf("%d",&r1);
                                                    printf("Enter the number of columns of the first matrix (max 3): ");
                                                    scanf("%d",&c1);
                                                    printf("Enter the number of rows of the second matrix (max 3): ");
                                                    scanf("%d",&r2);
                                                    printf("Enter the number of columns of the second matrix (max 3): ");
                                                    scanf("%d",&c2);
                                                    if(r2==c1){
                                                          printf("Enter rows and columns of First Matrix \n");
                                                          printf("Row wise\n\n");
                                                          for(i=0;i<r1;i++){
                                                             printf("Enter the elements for row %d: ", i+1);
                                                             for(j=0;j<c1;j++)
                                                             scanf("%d",&m1[i][j]);
                                                          }
                                                          printf("You have entered the First Matrix as follows:\n");
                                                          for(i=0;i<r1;i++){
                                                             for(j=0;j<c1;j++)
                                                             printf("%d\t",m1[i][j]);
                                                             printf("\n");
                                                             }
                                                          printf("Enter rows and columns of Second Matrix \n");
                                                          printf("Again row wise\n");
                                                          for(i=0;i<r2;i++){
                                                             printf("Enter the elements for row %d: ", i+1);
                                                             for(j=0;j<c2;j++)
                                                             scanf("%d",&m2[i][j]);
                                                             }
                                                          printf("You have entered the Second Matrix as follows:\n");
                                                          for(i=0;i<r2;i++){
                                                             for(j=0;j<c2;j++)
                                                             printf("%d\t",m2[i][j]);
                                                              printf("\n");
                                                             }
                                                          printf("Now we multiply both the above matrix \n");
                                                          printf("The result of the multiplication is as follows:\n");
                                                          for(i=0;i<r1;i++){
                                                             for(j=0;j<c2;j++){
                                                                mult[i][j]=0;
                                                                for(k=0;k<r1;k++){
                                                                   mult[i][j]+=m1[i][k]*m2[k][j];
                                                                }
                                                             printf("%d\t",mult[i][j]);
                                                             }
                                                             printf("\n");
                                                          }
                                                          getche();
                                                    }
                                                    else{
                                                    printf("Matrix multiplication cannot be done");
                                                    }
                                                    break;
                                               case 3:
                                                    break;
                                               case 4:
                                                    break;
                                               default:
                                                       system("cls");
                                                       printf("Invalid input. Please try again!!!\n");
                                                       printf("Please press the spacebar to continue!!");
                                                       getche();
                                                       break;
                                               }
                                    break;
                               case 4://Exit
                                    return 0;
                                    break;
                               default:
                                       system("cls");
                                       printf("Invalid input. Please try again!!!\n");
                                       printf("Please press the spacebar to continue!!");
                                       getche();
                                       break;
                                       }
             }while(selection>=5 || SA==4 || QA==2);
             getche();
    }//End Program
     
    Last edited by a moderator: Jan 24, 2010
  2. kiddo

    kiddo New Member

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    what compiler do you use?
    is it logical error or syntax?

    I'll try to check it....
     
  3. askmewhy25

    askmewhy25 New Member

    Joined:
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    I am using bloodshed dev c++..i already couple of errors but i am having problem with reseting my standard deviation...

    here is the updated version..
    Code:
    //This program can evaluate a polynomial, solve for statistical algorithms
    //and do matrix operations.
    #include <stdio.h>
    #include <conio.h>
    #include <math.h>
    #include <stdlib.h>
    
    //Psalm 119:10-11
    //10 I seek you with all my heart;
    //do not let me stray from your commands.
    //11 I have hidden your word in my heart
    //that I might not sin against you.
    
    //Start Program
    main(){
           int selection;
           //Variables for Statistical Algorithms
           int SA,a,b,sum=0,data[10];
           float mean;
           double calc,sd;       
           //Variables for Matrix Operation
           int m1[3][3]={},i,j,k,m2[3][3]={},add[3][3]={},mult[3][3]={},r1,c1,r2,c2,MO;
           
           //Menu Selection Screen    
           do{
                  system("cls");
                  printf("Menu Selection Screen\n\n");
                  printf("1 - Polynomial Evaluation\n");
                  printf("2 - Statistical Algorithms\n");
                  printf("3 - Matrix Operation\n");
                  printf("4 - Exit\n");
             
                  scanf("%d",&selection);
                  switch(selection){
                                    case 1:
                                         break;
                                    case 2:
                                         do{
                                              sum=0;
                                              mean=0;
                                              sd=0;
                                              system("cls");
                                              printf("Statistical Algorithms\n\n");
                                              printf("1 - Mean\n");
                                              printf("2 - Standard Deviation\n");
                                              printf("3 - Summation of data\n");
                                              printf("4 - Go Back to Menu Selection Screen\n");
                                                                       
                                              scanf("%d", &SA);
                                              switch(SA){
                                                         case 1:
                                                              do{
                                                                 system("cls");
                                                                 printf("Mean\n\n");
                                                                 printf("Enter the Number of Data (max. 10): ");
                                                                 scanf("%d", &b);
                                                                 if(b>10||b<1){
                                                                               system("cls");
                                                                               printf("Invalid input. Please try again!!!\n");
                                                                               printf("Please press the spacebar to continue!!");
                                                                               getche();
                                                                               }
                                                                 }while(b>10||b<1);
                                                              for(a=0;a<b;a++){
                                                                 printf("Enter the Actual Values of Data %d: ", a+1);
                                                                 scanf("%d",&data[a]);
                                                                 }
                                                              for(a=0;a<b;a++){
                                                                 sum=sum+data[a];
                                                                 }
                                                              mean=(float)sum/a;
                                                              printf("The Mean of the Data is %f\n",mean);
                                                              printf("Please press the spacebar to continue!!");
                                                              getche();
                                                              break;
                                                         case 2:
                                                              do{
                                                                 system("cls");
                                                                 printf("Standard Deviation\n\n");
                                                                 printf("Enter the Number of Data (max. 10): ");
                                                                 scanf("%d", &b);
                                                                 if(b>10||b<1){
                                                                               system("cls");
                                                                               printf("Invalid input. Please try again!!!\n");
                                                                               printf("Please press the spacebar to continue!!\n");
                                                                               getche();
                                                                               }
                                                                 }while(b>10||b<1);
                                                              for(a=0;a<b;a++){
                                                                 printf("Enter the Actual Values of Data %d: ", a+1);
                                                                 scanf("%d",&data[a]);
                                                                 }
                                                              for(a=0;a<b;a++){
                                                                 sum=sum+data[a];
                                                                 }
                                                              mean=(float)sum/a;
                                                              for(a=0;a<b;a++){
                                                                 calc+=pow((data[a]-mean),2);
                                                                 }
                                                              sd=sqrt(calc/b);
                                                              printf("The Standard Deviation the Data is %lf\n",sd);
                                                              printf("Please press the spacebar to continue!!");
                                                              getche();
                                                              break;
                                                         case 3:
                                                              do{
                                                                 system("cls");
                                                                 printf("Summation of Data\n\n");
                                                                 printf("Enter the Number of Data (max. 10): ");
                                                                 scanf("%d", &b);
                                                                 if(b>10||b<1){
                                                                               system("cls");
                                                                               printf("Invalid input. Please try again!!!\n");
                                                                               printf("Please press the spacebar to continue!!");
                                                                               getche();
                                                                               }
                                                                 }while(b>10||b<1);
                                                              for(a=0;a<b;a++){
                                                                 printf("Enter the Actual Values of Data %d: ", a+1);
                                                                 scanf("%d",&data[a]);
                                                              }
                                                              for(a=0;a<b;a++){
                                                                 sum=sum+data[a];
                                                                 }
                                                              mean=(float)sum/a;
                                                              printf("The Summation of the Data is %d\n",sum);
                                                              printf("Please press the spacebar to continue!!");
                                                              getche();
                                                              break;
                                                         case 4:
                                                              main();
                                                              break;
                                                         default:
                                                                 system("cls");
                                                                 printf("Invalid Input. Please try again!!!\n");
                                                                 printf("Please press the spacebar to continue!!");
                                                                 getche();
                                                                 break;
                                                         }
                                              }while(SA!=4); 
                                         break;
                                    case 3:
                                         do{
                                              system("cls");
                                              printf("Matrix Operation\n\n");
                                              printf("1 - Matrix Addition\n");
                                              printf("2 - Matrix Multiplication\n");
                                              printf("3 - Transpose of Matrix\n");
                                              printf("4 - Go Back to Menu Selection Screen\n");
                                              scanf("%d", &MO);
                                              switch(MO){
                                                         case 1:
                                                              system("cls");
                                                              printf("Matrix Addition\n\n");
                                                              printf("Enter the number of rows of the first matrix (max 3): ");
                                                              scanf("%d",&r1);
                                                              printf("Enter the number of columns of the first matrix (max 3): ");
                                                              scanf("%d",&c1);
                                                              printf("Enter the number of rows of the second matrix (max 3): ");
                                                              scanf("%d",&r2);
                                                              printf("Enter the number of columns of the second matrix (max 3): ");
                                                              scanf("%d",&c2);
                                                              if(r2==c1){
                                                                         printf("Enter rows and columns of First Matrix \n");
                                                                         printf("Row wise\n\n");
                                                                         for(i=0;i<r1;i++){
                                                                            printf("Enter the elements for row %d: ", i+1);
                                                                            for(j=0;j<c1;j++)
                                                                               scanf("%d",&m1[i][j]);
                                                                         }
                                                                         printf("You have entered the First Matrix as follows:\n");
                                                                         for(i=0;i<r1;i++){
                                                                            for(j=0;j<c1;j++)
                                                                            printf("%d\t",m1[i][j]);
                                                                            printf("\n");
                                                                         }
                                                                         printf("Enter rows and columns of Second Matrix \n");
                                                                         printf("Again row wise\n");
                                                                         for(i=0;i<r2;i++){
                                                                            printf("Enter the elements for row %d: ", i+1);
                                                                            for(j=0;j<c2;j++)
                                                                            scanf("%d",&m2[i][j]);
                                                                         }
                                                                         printf("You have entered the Second Matrix as follows:\n");
                                                                         for(i=0;i<r2;i++){
                                                                           for(j=0;j<c2;j++)
                                                                           printf("%d\t",m2[i][j]);
                                                                           printf("\n");
                                                                         }
                                                                         if(r1==r2&&c1==c2){
                                                                            printf("Now we add both the above matrix \n");
                                                                            printf("The result of the addition is as follows;\n");
                                                                            for(i=0;i<r1;i++){
                                                                               for(j=0;j<c1;j++){
                                                                                  add[i][j]=m1[i][j]+m2[i][j];
                                                                                  printf("%d\t",add[i][j]);
                                                                               }
                                                                               printf("\n");
                                                                            }
                                                                         }
                                                                         else{
                                                                         printf("Addition cannot be done as rows or columns are not equal\n");
                                                                         }
                                                              }
                                                              printf("Please press the spacebar to continue!!");
                                                              getche();
                                                              break;
                                                         case 2:
                                                              system("cls");
                                                              printf("Matrix Multiplication\n\n");
                                                              printf("Enter the number of rows of the first matrix (max 3): ");
                                                              scanf("%d",&r1);
                                                              printf("Enter the number of columns of the first matrix (max 3): ");
                                                              scanf("%d",&c1);
                                                              printf("Enter the number of rows of the second matrix (max 3): ");
                                                              scanf("%d",&r2);
                                                              printf("Enter the number of columns of the second matrix (max 3): ");
                                                              scanf("%d",&c2);
                                                              if(r2==c1){
                                                                         printf("Enter rows and columns of First Matrix \n");
                                                                         printf("Row wise\n\n");
                                                                         for(i=0;i<r1;i++){
                                                                            printf("Enter the elements for row %d: ", i+1);
                                                                            for(j=0;j<c1;j++)
                                                                            scanf("%d",&m1[i][j]);
                                                                         }
                                                                         printf("You have entered the First Matrix as follows:\n");
                                                                         for(i=0;i<r1;i++){
                                                                            for(j=0;j<c1;j++)
                                                                            printf("%d\t",m1[i][j]);
                                                                            printf("\n");
                                                                            }
                                                                         printf("Enter rows and columns of Second Matrix \n");
                                                                         printf("Again row wise\n");
                                                                         for(i=0;i<r2;i++){
                                                                            printf("Enter the elements for row %d: ", i+1);
                                                                            for(j=0;j<c2;j++)
                                                                            scanf("%d",&m2[i][j]);
                                                                         }
                                                                         printf("You have entered the Second Matrix as follows:\n");
                                                                         for(i=0;i<r2;i++){
                                                                           for(j=0;j<c2;j++)
                                                                           printf("%d\t",m2[i][j]);
                                                                           printf("\n");
                                                                           }
                                                                         printf("Now we multiply both the above matrix \n");
                                                                         printf("The result of the multiplication is as follows:\n");
                                                                         for(i=0;i<r1;i++){
                                                                            for(j=0;j<c2;j++){
                                                                               mult[i][j]=0;
                                                                               for(k=0;k<r1;k++){
                                                                                 mult[i][j]+=m1[i][k]*m2[k][j];
                                                                               }
                                                                               printf("%d\t",mult[i][j]);
                                                                            }
                                                                            printf("\n");
                                                                         }
                                                              }
                                                                         else{
                                                                              printf("Matrix multiplication cannot be done");
                                                                              }
                                                                         printf("Please press the spacebar to continue!!");
                                                                         getche();
                                                                         break;
                                                         case 3:
                                                              system("cls");
                                                              printf("Transpose of Matrix\n\n");
                                                              printf("Enter the number of rows of the matrix (max 3): ");
                                                              scanf("%d",&r1);
                                                              printf("Enter the number of columns of the matrix (max 3): ");
                                                              scanf("%d",&c1);
                                            
                                                              printf("Enter rows and columns of Matrix \n");
                                                              printf("Row wise\n\n");
                                                              for(i=0;i<r1;i++){
                                                                 for(j=0;j<c1;j++){
                                                                    scanf("%d",&m1[i][j]);
                                                                    m2[j][i]=m1[i][j];
                                                                    }
                                                              }
                                                              printf("You have entered the First Matrix as follows:\n");
                                                              for(i=0;i<r1;i++){
                                                                 for(j=0;j<c1;j++)
                                                                 printf("%d\t",m1[i][j]);
                                                                 printf("\n");
                                                              }
                                                              printf("Transpose of Matrix is:\n");
                                                              for(i=0;i<c1;i++){
                                                                 for(j=0;j<r1;j++)
                                                                 printf("%d\t",m2[i][j]);
                                                                 printf("\n");
                                                              }
                                                              printf("Please press the spacebar to continue!!");
                                                              getche();
                                                              break;
                                                         case 4:
                                                              main();
                                                              break;
                                                         default:
                                                                 system("cls");
                                                                 printf("Invalid input. Please try again!!!\n");
                                                                 printf("Please press the spacebar to continue!!");
                                                                 getche();
                                                                 break;
                                                         }
                                            }while(MO!=4);                
                                         break;
                                    case 4:
                                         return 0;
                                         break;
                                    default:
                                            system("cls");
                                            printf("Invalid input. Please try again!!!\n");
                                            printf("Please press the spacebar to continue!!");
                                            getche();
                                            break;
                                    }
             }while(selection>4 || selection<=0);
    }
     
    Last edited by a moderator: Jan 25, 2010
  4. askmewhy25

    askmewhy25 New Member

    Joined:
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    btw kiddo if also you have time can you also dubug my polynomial program..only if you can
    Code:
    #include <stdio.h>
    #include <conio.h>
    #include <math.h>
    #include <stdlib.h>
    
    main(){
           double poly[11]={};
           double polysum;
           int w, v, x, y, n, z,QA;
           
           do{
              do{
                 system("cls");
                 printf("Polynomial Evaluation\n\n");
                 printf("Enter the Order of Polynomial (max. 10): ");
                 scanf("%d",&n);
                 if(n>10||n<1){
                               system("cls");
                               printf("Invalid input. Please try again!!!\n");
                               printf("Please press the spacebar to continue!!");
                               getche();
                               }
                 }while(n>10||n<1);
                 y=n+1;
                 z=n;
                 v=n;
                 while(y!=0){
                             printf("Please enter the constant for X raised to the %dth: ", z);
                             scanf("%lf",&poly[z]);
                             y--;
                             z--;
                             }
                 printf("Enter the value of X: ");
                 scanf("%d",&x);   
                 for(w=0;w<n+1;w++){
                                    polysum+=poly[w]*pow(x,n);
                                    n--;
                                    }
                 polysum=polysum+poly[0];
                 printf("The evaluated value of the %dth Order Polynomial  %lf\n", v, polysum);
                 printf("Please press the spacebar to continue!!\n");
                 getche();
                 do{
                    system("cls");
                    printf("Do you want to repeat the computation?\n\n");
                    printf("1 - Yes\n");
                    printf("2 - No\n");
                    scanf("%d", &QA);
                    switch(QA){
                               case 1:
                                    break;
                               case 2:
                                    break;
                               default:
                                       system("cls");
                                       printf("Invalid input. Please try again!!!\n");
                                       printf("Please press the spacebar to continue!!");
                                       getche();
                                       break;   
                               }
                    }while(QA>2||QA<1);
                    polysum=0;
                 }while(QA==1);
    }
     
    Last edited by a moderator: Jan 25, 2010

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