funcy::Cos Struct Reference

Cosine function (based on cos(double) in <cmath>). More...

#include <cosine.h>

Inheritance diagram for funcy::Cos:

Collaboration diagram for funcy::Cos:

Public Member Functions
	Cos (double x=0.) noexcept
	Constructor. More...
void	update (double x) noexcept
	Set point of evaluation.
double	d0 () const noexcept
	Function value.
double	d1 (double dx=1.) const noexcept
	First (directional) derivative.
double	d2 (double dx=1., double dy=1.) const noexcept
	Second (directional) derivative.
double	d3 (double dx=1., double dy=1., double dz=1.) const noexcept
	Third (directional) derivative.

Detailed Description

Cosine function (based on cos(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

Cos()

funcy::Cos::Cos ( double  x = 0. )

inlineexplicitnoexcept

Constructor.

Parameters

x	point of evaluation

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

• include/funcy/cmath/cosine.h