Gradient with the Centered Difference Scheme

Classes
class	GradientCenteredDifference< N, Functor, T >
	The numerical gradient of a functor. More...
Functions
template<int N, class Functor , typename T >
void	gradient_centered_difference (const Functor &f, typename Functor::argument_type x, ads::FixedArray< N, typename Functor::result_type > &gradient, const T delta=std::pow(std::numeric_limits< T >::epsilon(), 1.0/3.0))
	Calculate the gradient of f at x.
template<int N, class Functor , typename T >
ads::FixedArray< N, typename Functor::result_type >	gradient_centered_difference (const Functor &f, typename Functor::argument_type x, const T delta=std::pow(std::numeric_limits< T >::epsilon(), 1.0/3.0))
	Return the gradient of f at x.

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Detailed Description

These functions and functor calculate the gradient of a functor using a centered difference scheme.

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Function Documentation

template<int N, class Functor , typename T >

ads::FixedArray<N,typename Functor::result_type> gradient_centered_difference	(	const Functor &	f,
		typename Functor::argument_type	x,
		const T	delta = std::pow( std::numeric_limits<T>::epsilon(), 1.0 / 3.0 )
	)			[inline]

Return the gradient of f at x.

You must specify N explicitly as it cannot be inferred from the arguments.

References gradient_centered_difference().