funcy::Log2 Struct Reference

Base 2 logarithm. More...

#include <log.h>

Inheritance diagram for funcy::Log2:

Collaboration diagram for funcy::Log2:

Public Member Functions
	Log2 (double x=1.) FUNCY_NOEXCEPT
	Constructor. More...
void	update (double x) FUNCY_NOEXCEPT
	Set point of evaluation. More...
double	d0 () const noexcept
	Function value. More...
double	d1 (double dx=1.) const noexcept
	First (directional) derivative. More...
double	d2 (double dx=1., double dy=1.) const noexcept
	Second (directional) derivative. More...
double	d3 (double dx=1., double dy=1., double dz=1.) const noexcept
	Third (directional) derivative. More...

Detailed Description

Base 2 logarithm.

For scalar functions directional derivatives are less interesting. Incorporating this function as building block for more complex functions requires directional derivatives. These occur during applications of the chain rule.

Constructor & Destructor Documentation

Log2()

funcy::Log2::Log2 ( double  x = 1. )

inlineexplicit

Constructor.

Parameters

x	point of evaluation

Member Function Documentation

d0()

double funcy::Log2::d0 ( ) const

inlinenoexcept

Function value.

d1()

double funcy::Log2::d1 ( double  dx = 1. ) const

inlinenoexcept

First (directional) derivative.

d2()

double funcy::Log2::d2 ( double  dx = 1., double  dy = 1.  ) const

inlinenoexcept

Second (directional) derivative.

d3()

double funcy::Log2::d3 ( double  dx = 1., double  dy = 1., double  dz = 1.  ) const

inlinenoexcept

Third (directional) derivative.

update()

void funcy::Log2::update ( double  x )

inline

Set point of evaluation.

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The documentation for this struct was generated from the following file:

• include/funcy/cmath/log.h