funcy::ACos Struct Reference

Arc cosine function (based on acos(double) in <cmath>). More...

#include <arccos.h>

Inheritance diagram for funcy::ACos:

Collaboration diagram for funcy::ACos:

Public Member Functions
	ACos (double x=0.) 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

Arc cosine function (based on acos(double) in <cmath>).

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

ACos()

funcy::ACos::ACos ( double  x = 0. )

inlineexplicit

Constructor.

Parameters

x	point of evaluation

Member Function Documentation

d0()

double funcy::ACos::d0 ( ) const

inlinenoexcept

Function value.

d1()

double funcy::ACos::d1 ( double  dx = 1 ) const

inlinenoexcept

First (directional) derivative.

d2()

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

inlinenoexcept

Second (directional) derivative.

d3()

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

inlinenoexcept

Third (directional) derivative.

update()

void funcy::ACos::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/arccos.h