GsfBetheHeitlerUpdator::Polynomial Class Reference

Public Member Functions
float	operator() (float x) const
	Evaluation of the polynomial. More...
	Polynomial ()
	Default constructor (needed for construction of a vector) More...
	Polynomial (float coefficients[], int is)

Private Attributes
int	m_size = 0
float	theCoeffs [MaxOrder] = {0}

Detailed Description

Helper class for construction & evaluation of a polynomial

Definition at line 27 of file GsfBetheHeitlerUpdator.h.

Constructor & Destructor Documentation

Polynomial() [1/2]

GsfBetheHeitlerUpdator::Polynomial::Polynomial ( )

inline

Default constructor (needed for construction of a vector)

Definition at line 30 of file GsfBetheHeitlerUpdator.h.

{}

Polynomial() [2/2]

GsfBetheHeitlerUpdator::Polynomial::Polynomial ( float  coefficients[], int  is  )

inline

Constructor from a vector of coefficients (in decreasing order of powers of x)

Definition at line 34 of file GsfBetheHeitlerUpdator.h.

References mps_fire::i, m_size, and theCoeffs.

                                             : m_size(is) {
      for (int i = 0; i != m_size; ++i)
        theCoeffs[i] = coefficients[i];
    }

Member Function Documentation

operator()()

float GsfBetheHeitlerUpdator::Polynomial::operator() ( float  x ) const

inline

Evaluation of the polynomial.

Definition at line 39 of file GsfBetheHeitlerUpdator.h.

References mps_fire::i, m_size, theCoeffs, and x.

                                    {
      float sum = theCoeffs[0];
      for (int i = 1; i != m_size; ++i)
        sum = x * sum + theCoeffs[i];
      return sum;
    }

Member Data Documentation

m_size

int GsfBetheHeitlerUpdator::Polynomial::m_size = 0

private

Definition at line 48 of file GsfBetheHeitlerUpdator.h.

Referenced by operator()(), and Polynomial().

theCoeffs

float GsfBetheHeitlerUpdator::Polynomial::theCoeffs[MaxOrder] = {0}

private

Definition at line 47 of file GsfBetheHeitlerUpdator.h.

Referenced by operator()(), and Polynomial().