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source code for c++ program for exponential function

Discussion in 'C++' started by moniratna, Sep 12, 2011.

  1. moniratna

    moniratna New Member

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    Code:
    /*To write a program for exponential function(e^x) upto nth term inputing the values of 'n' & 'x'*/
    /*e^x=1+x+x^2/2!+...+x^n/n!*/
    
    #include<iostream.h>
    
    #include<conio.h>
    
      float factorial(int n)
        { 
          float f=1;
          for(int i=1;i<=n;i++)
            f=f*i;
           return f;
        }
    
      float series(int n,int x)
        {
          float h=1;
          for(int i=1;i<=n;i++)
           h=h*x;
          return h;
        }
    
      int main()
        {
         clrscr();
         int n,x,i;
         float s=1;
         cout<<"Enter the value for 'n' & 'x': ";
         cin>>n>>x;
         for(i=1;i<=n;i++)
           s=s+series(i,x)/factorial(i);
         cout<<"The sum= "<<s;
         getch();
         return 0;
        }
    
    //this is my first post... please respond...
     
    Last edited by a moderator: Sep 13, 2011
  2. poornaMoksha

    poornaMoksha New Member

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    Occupation:
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    Have you compiled this?
    Whats the problem you are facing?
     

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