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I need a tutor

Discussion in 'C++' started by randy, Mar 10, 2009.

  1. randy

    randy New Member

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    I just learn C++ . Any tutors for C++ programming available to chat and answer questions related to homework ?
    thanks
     
  2. NewsBot

    NewsBot New Member

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    If you are ready to do your homework we can help you out.
     
  3. randy

    randy New Member

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    Thank you very much, the homework has been attached. include the instruction. thank you
     
  4. randy

    randy New Member

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    i think the attachment has been failed. just post the homework on the form, thanks.


    A CLASS FOR POLYNOMIALS

    PURPOSE

    In this assignment we develop a user‐defined C++ class to describe and manipulate polynomials.

    REQUIREMENTS

    1. Your boss requests (wow, is she ever becoming demanding) that you complete the
    implementation of a C++ class Polynomial, which she has prescribed in the following
    manner: (hint, here’s a “second order polynomial in the variable x“ 3x2+6.5x+12)
    a. The declaration should match the public interface shown in the “incomplete” header
    file Polynomial.h . Note, the actual structure of the private members and
    methods of this class are up to you to design.
    b. The behavior of the class and its methods should duplicate that shown in the
    example test application TestThePolys.cpp and its associated program output.
    2.
    a. Due date is Friday, March 13, 2008 at noon.
    b. Your solution should consist of at least four files.
    i. A C++ header file (Polynomial.h) to complete the declaration.
    ii. A complete C++ source code file to complete the Polynomial definition
    including definition of any friend functions required (Polynomial.cpp).
    iii. A C++ source code file for providing a “main” test application
    (TestThePolyEtc.cpp) which at least duplicates the boss’s desired
    behavior tests (again, note, it is strongly suggested that you carry out further
    tests of the class’s functionality).
    iv. A single text (.txt) file which contains demonstration dialog of your class
    and main program behavior.
    Page 2
    Here’s the boss’s very incomplete specification for the public view of Polynomial:
    Just for practice, here are some more polynomials for you to consider. All are considered in the
    default variable x, which is okay with your boss.

    Example 1: A third order polynomial with the coefficient list of {34.2, 12.7, ‐8.4, 1}
    x38.4x2+
    12.7x+34.2 or equivalently 1x38.4x2+
    12.7x1+34.2x0

    Example 2: A second order polynomial with the coefficient list of {12.0, 7.0, 0.5}
    0.5x2+7.0x+12.0 or equivalently 0.5x2+7.0x1+12.0x0

    MAJOR CLUE: You will need to implement some form of dynamic memory allocation in order to
    efficiently store a variable number of coefficients (the order of a polynomial might change). In
    particular, in the following test program, you should consider carefully what happens to enable the
    assignment D=C. For example, your class should also deal correctly with an assignment such as C=A
    if it were inserted at the bottom of main TestThePoly.cpp.

    Code:
    // Polynomial.h
    // Incomplete declaration of Polynomial class
    // Programming Assignment 
    class Polynomial
    {
    friend ostream& operator<<( ostream& , const Polynomial& );
    friend istream& operator>>( istream& , Polynomial& );
    public:
    Polynomial();
    Polynomial( int order, const double* coefficients );
    Polynomial( const Polynomial& );
    ~Polynomial();
    const Polynomial& operator=( const Polynomial& );
    bool operator==( const Polynomial& ) const;
    int getOrder() const;}
    // Beware, very, very incomplete!
    
    
    
    Here’s the boss’s test program, and the desired output follows on the last page:
    // TestThePoly.cpp
    // Minimum behavioral demonstration for class Polynomial
    // Programming Assignment 
    #include <iostream>
    using std::cout;
    using std::endl;
    using std::cin;
    #include "Polynomial.h"
    int main()
    {
    Polynomial A;
    cout << "(1) First look at A: " << A << endl;
    cout << endl << "Enter the polynomial (int order then double coeffs): ";
    cin >> A;
    cout << endl;
    cout << "(2) Second look at A: " << A << endl;
    Polynomial B(A);
    cout << "(3) First look at B: " << B << endl;
    double clist[]={8, 4.5, 1};
    Polynomial C(2, clist);
    cout << "(4) First look at C: " << C << endl;
    Polynomial D=C;
    cout << "(5) First look at D: " << D << endl;
    cout << "(6) Testing A == B : " << (A==B ? "TRUE" : "FALSE") << endl;
    cout << "(7) Testing A == D : " << (A==D ? "TRUE" : "FALSE") << endl;
    return 0;
    }

    The results:
    C:\Temp\TestThePoly\Debug> TestThePoly
    (1) First look at A: empty
    Enter the polynomial (int order then double coeffs): 3
    1
    4.5
    7.6
    21.1
    (2) Second look at A: 1 x^(3) + 4.5 x^(2) + 7.6 x^(1) + 21.1 x^(0)
    (3) First look at B: 1 x^(3) + 4.5 x^(2) + 7.6 x^(1) + 21.1 x^(0)
    (4) First look at C: 1 x^(2) + 4.5 x^(1) + 8 x^(0)
    (5) First look at D: 1 x^(2) + 4.5 x^(1) + 8 x^(0)
    (6) Testing A == B : TRUE
    (7) Testing A == D : FALSE
    C:\Temp\TestThePoly\Debug>
     
  5. NewsBot

    NewsBot New Member

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    So what you have done in this ?
     
  6. randy

    randy New Member

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    thank you for your asking, I don't know where should I start. Thanks.
     
  7. randy

    randy New Member

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    can you help me with this ,please??
     
  8. NewsBot

    NewsBot New Member

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    If you don't know where to start try writing some elementary programs like taking input from user and displaying it or taking number as input and decide on if its odd or even number ....
     
  9. LuciferiA

    LuciferiA New Member

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    Me too Mr. shabbir..
    I also need a master who can teach me any C++ basic... and give some quizzes.. :D
     

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