mod_get_discrete_derivative Module Reference

Discrete derivatives dictionnary. More...

Functions/Subroutines
subroutine	init_dd_matrix ()
	Initialize the dd matrix holder.
type(t_discrete_derivative) function	get_dd (N, order, steps)
	Get the Discrete Derivative This function builds the dictionnary 'on the fly', if needed. More...
subroutine	get_dd_pointer (N, order, steps, res)
	Get the pointer to the associated Discrete Derivative. More...

Variables
integer, parameter	max_derivative = 8
	Maximum derivative,. More...
integer, parameter	max_order = 8
	Maximum order,. More...
type(t_dd_dict_steps), dimension(max_derivative+1, max_order+1), target	dd_matrix

Detailed Description

The Discrete Derivatives dictionnary

Function/Subroutine Documentation

get_dd()

type(t_discrete_derivative) function mod_get_discrete_derivative::get_dd	(	integer, intent(in)	N,
		integer, intent(in)	order,
		double precision, dimension(:), intent(in)	steps
	)

Parameters

[in]	N	the N'th derivative
[in]	order	the order of the derivative
[in]	steps	the spatial steps of the stencil

Returns

a copy of the DD (which is less efficient than the subroutine get_dd_pointer)

get_dd_pointer()

subroutine mod_get_discrete_derivative::get_dd_pointer	(	integer, intent(in)	N,
		integer, intent(in)	order,
		double precision, dimension(:), intent(in)	steps,
		type(t_discrete_derivative), intent(inout), pointer	res
	)

Returns the DD associated to the Nth derivative of the given order with the associated steps.

Parameters

[in]	N	the N'th derivative
[in]	order	the order of the derivative
[in]	steps	the spatial steps of the stencil
[in,out]	res	the resulting DD pointer

Returns

a pointer to the DD (which is more efficient than the subroutine get_dd)

Variable Documentation

max_derivative

integer, parameter mod_get_discrete_derivative::max_derivative = 8

See also

Schemes

max_order

integer, parameter mod_get_discrete_derivative::max_order = 8

See also

Schemes