Hi, I need help implementing a class that represents a polynomial in C++ languag

Question

Hi,

I need help implementing a class that represents a polynomial in C++ language

Must have:

3 constructors

A default constructor (no parameters)

A constructor that takes two parameters: exponent and coefficient

   A Copy Constructor

A destructor

A print function

Operators =,+,*

Specification file:

#ifndef CPOLYNOMIAL_H #define CPOLYNOMIAL_H

struct termNode

{

int exp; // exponent

int coef; // coefficient

termNode * next;

};

class CPolynomial

{

public:

CPolynomial (); // default constructor

CPolynomial (int r, int c);

// constructor makes a 1 node polynomial

CPolynomial (const CPolynomial & ); // copy constructor

~ CPolynomial (); // destructor

void print(); // prints out the polynomial in descending order

CPolynomial& operator=(const CPolynomial &); // equals

CPolynomial& operator+ (const CPolynomial & ) const; // returns sum of the parameter + self

CPolynomial& operator* (const CPolynomial & ) const;

private:

termNode *polyPtr;

};

#endif

This woudl be the sample main fucntion:

int main()

{

CPolynomial poly1; //creates a null polynomial

CPolynomial poly2(2, 3); //creates 2x^3 polynomial

CPolynomial poly3(3, 4); //creates 3x^4 polynomial

poly1 = poly2 + poly3; //makes poly1 = 3x^4 + 2x^3

poly1.print(); //prints out 3x^4 + 2x^3

poly3 = poly2 * poly1; //sets poly3 to 6x^7 + 4x^6

return 0;

}

Any help would be helpful. Thank you

#ifndef CPOLYNOMIAL_H #define CPOLYNOMIAL_H

struct termNode

{

int exp; // exponent

int coef; // coefficient

termNode * next;

};

class CPolynomial

{

public:

CPolynomial (); // default constructor

CPolynomial (int r, int c);

// constructor makes a 1 node polynomial

CPolynomial (const CPolynomial & ); // copy constructor

~ CPolynomial (); // destructor

void print(); // prints out the polynomial in descending order

CPolynomial& operator=(const CPolynomial &); // equals

CPolynomial& operator+ (const CPolynomial & ) const; // returns sum of the parameter + self

CPolynomial& operator* (const CPolynomial & ) const;

private:

termNode *polyPtr;

};

#endif

This woudl be the sample main fucntion:

int main()

{

CPolynomial poly1; //creates a null polynomial

CPolynomial poly2(2, 3); //creates 2x^3 polynomial

CPolynomial poly3(3, 4); //creates 3x^4 polynomial

poly1 = poly2 + poly3; //makes poly1 = 3x^4 + 2x^3

poly1.print(); //prints out 3x^4 + 2x^3

poly3 = poly2 * poly1; //sets poly3 to 6x^7 + 4x^6

return 0;

}

Explanation / Answer

#include using namespace std; class Polynomial { private: int Nterms; double* pCoeffs;// from lowest to highest order public: // functions double evaluateAt(double x); void print(void); // constructor Polynomial( double Coeffs[], int N_terms );// full construction from given array of coefficients // destructor ~Polynomial();// destructor VERY important this case }; // full constructor. Must be passed an array of coeffs. and the array size. Polynomial::Polynomial( double Coeffs[], int N_terms ) { Nterms = N_terms; pCoeffs = new double[ Nterms ];// allocate an array to hold the coefficient values for(int i=0; i

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.