#include <Polynomial.h>

Public Member Functions
	Polynomial ()

	Polynomial (const std::vector< int > &coefficients)

	Polynomial (const Polynomial &poly)

	~Polynomial ()

Polynomial &	operator= (const Polynomial &poly)

void	differentiatePolynomial ()

void	multiplyPolynomial (const Polynomial &poly)

void	addPolynomial (const Polynomial &poly)

void	printPolynomial () const

int	getCoefficient (const std::size_t &order) const

void	setCoefficient (const int &coefficient, const std::size_t &order)

int	getMaxXorder () const

void	setMaxXorder (const std::size_t &maxXorder)

void	setZero ()

double	evaluatePolynomial (const double &x) const

void	truncate (const std::size_t &truncateOrder)

Private Attributes
std::size_t	maxXorder_m

std::vector< int >	coefficients_m

Detailed Description

Definition at line 51 of file Polynomial.h.

Constructor & Destructor Documentation

polynomial::Polynomial::Polynomial ( )

Default constructor, initialises zero polynomial

Definition at line 34 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

polynomial::Polynomial::Polynomial ( const std::vector< int > & coefficients )

explicit

Initialises polynomial with input coefficients, starting with the const term
If coefficients is an empty vector, a zero polynomial with one constant zero term is created

Parameters

coefficients -> List of polynomial coefficients, starting with the const term

Definition at line 39 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

polynomial::Polynomial::Polynomial ( const Polynomial & poly )

Copy constructor

Definition at line 48 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

polynomial::Polynomial::~Polynomial ( )

Destructor, does nothing

Definition at line 53 of file Polynomial.cpp.

Member Function Documentation

void polynomial::Polynomial::addPolynomial ( const Polynomial & poly )

Add polynomial to input polynomial
If input polynomial has higher order terms, then maxXorder_m is adjusted and coefficients_m is resized

Parameters

poly	-> Polynomial to be added to this polynomial

Definition at line 107 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

void polynomial::Polynomial::differentiatePolynomial ( )

Differentiate polynomial using \(\frac{d}{dx}x^n = nx^{n - 1}\)

Definition at line 62 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

double polynomial::Polynomial::evaluatePolynomial ( const double & x ) const

Evaluate the polynomial

Parameters

x	-> The point at which polynomial is evaluated

Definition at line 126 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

int polynomial::Polynomial::getCoefficient ( const std::size_t & order ) const

inline

Returns coefficient in front of x^order

Parameters

order -> The power of x belonging to this coefficient

Definition at line 120 of file Polynomial.h.

References coefficients_m, and maxXorder_m.

int polynomial::Polynomial::getMaxXorder ( ) const

inline

Returns the highest order of x, does nothing if order is negative

Definition at line 127 of file Polynomial.h.

References maxXorder_m.

void polynomial::Polynomial::multiplyPolynomial ( const Polynomial & poly )

Multiply polynomial with input polynomial by multiplying term by term
maxXorder_m is adjusted accordingly and coefficients_m is resized

Parameters

poly	-> Polynomial to be multiplied with this polynomial

Definition at line 77 of file Polynomial.cpp.

References coefficients_m, maxXorder_m, and setZero().

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Polynomial & polynomial::Polynomial::operator= ( const Polynomial & poly )

Assigment operator

Definition at line 56 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

void polynomial::Polynomial::printPolynomial ( ) const

Print polynomial for internal debugging

Definition at line 96 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

void polynomial::Polynomial::setCoefficient	(	const int &	coefficient,
		const std::size_t &	order
	)

Set the coefficient in front of x^order
If order is larger than maxXorder_m maxXorder_m is adjusted and coefficients_m is resized

Parameters

coefficient	-> Coefficient we wish to insert
order	-> The power of x belonging to this coefficient

Definition at line 117 of file Polynomial.cpp.

References coefficients_m, and maxXorder_m.

void polynomial::Polynomial::setMaxXorder ( const std::size_t & maxXorder )

inline

Set the highest order of x to maxXorder, filling in zeros if necessary

Parameters

maxXorder -> Highest power of x

Definition at line 131 of file Polynomial.h.

References coefficients_m, and maxXorder_m.

void polynomial::Polynomial::setZero ( )

inline

Set polynomial to zero

Definition at line 136 of file Polynomial.h.

References coefficients_m, and maxXorder_m.

Referenced by multiplyPolynomial().

void polynomial::Polynomial::truncate ( const std::size_t & truncateOrder )

inline

Truncate polynomial to truncateOrder
If truncateOrder is greater than maxXorder_m, maxXorder_m is adjusted and coefficients is resized with zero coefficients at the end

Parameters

truncateOrder -> Highest order of x after truncation

Definition at line 142 of file Polynomial.h.

References coefficients_m, and maxXorder_m.