differentiate_array_re Function

public pure function differentiate_array_re(x, y) result(r)

This function calculates the numerical derivative of an array y with respect to x, using a central difference approximation at the interior points and forward/backward difference approximations at the exterior points. Note that since all the three approaches yield two-point approximations of the derivative, the mesh spacing of x does not necessarily have to be uniform.

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=wp),	intent(in),		dimension(:)	::	x	Variable x
real(kind=wp),	intent(in),		dimension(size(x))	::	y	Function y(x)

Return Value real(kind=wp), dimension(size(x))

Derivative dy/dx

Contents

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