core/vnl/algo/vnl_discrete_diff.h File Reference

Functions to compute jacobians of vnl_least_squares_functions. More...

#include <vnl/vnl_vector.h>
#include <vnl/vnl_matrix.h>

Go to the source code of this file.

Functions
bool	vnl_discrete_diff_fwd (vnl_least_squares_function *lsf, double h, vnl_vector< double > const &x, vnl_matrix< double > &J)
	forward differences.
bool	vnl_discrete_diff_fwd (vnl_least_squares_function *lsf, vnl_vector< double > const &h, vnl_vector< double > const &x, vnl_matrix< double > &J)
	forward differences.
bool	vnl_discrete_diff_fwd (vnl_least_squares_function *lsf, vnl_vector< double > const &h, vnl_vector< double > const &x, vnl_vector< double > const &y, vnl_matrix< double > &J)
	forward differences.
bool	vnl_discrete_diff_sym (vnl_least_squares_function *lsf, double h, vnl_vector< double > const &x, vnl_matrix< double > &J)
	symmetric differences.
bool	vnl_discrete_diff_sym (vnl_least_squares_function *lsf, vnl_vector< double > const &h, vnl_vector< double > const &x, vnl_matrix< double > &J)
	symmetric differences.
void	vnl_discrete_diff_test_lsf (vnl_least_squares_function *lsf, vnl_vector< double > const &x)

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Detailed Description

Functions to compute jacobians of vnl_least_squares_functions.

Functions to compute jacobians of vnl_least_squares_functions by discrete differences. They return false on failure and true on success.

   name size    description
  
   lsf  ---     the function.
   h    1 or n  step size (scalar or a vector).
   x    n       point at which to evaluate the derivative of the function.
   y    m       value of the function at x.
   J    mxn     jacobian of the function at x.
   

Author:

fsm

    Modifications
     dac (Manchester) 28/03/2001: tidied up documentation
     Peter Vanroose   27/05/2001: Corrected documentation
   

Definition in file vnl_discrete_diff.h.

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Function Documentation

bool vnl_discrete_diff_fwd	(	vnl_least_squares_function *	lsf,
		double	h,
		vnl_vector< double > const &	x,
		vnl_matrix< double > &	J
	)

forward differences.

Definition at line 8 of file vnl_discrete_diff.cxx.

bool vnl_discrete_diff_fwd	(	vnl_least_squares_function *	lsf,
		vnl_vector< double > const &	h,
		vnl_vector< double > const &	x,
		vnl_matrix< double > &	J
	)

forward differences.

Definition at line 22 of file vnl_discrete_diff.cxx.

bool vnl_discrete_diff_fwd	(	vnl_least_squares_function *	lsf,
		vnl_vector< double > const &	h,
		vnl_vector< double > const &	x,
		vnl_vector< double > const &	y,
		vnl_matrix< double > &	J
	)

forward differences.

Definition at line 34 of file vnl_discrete_diff.cxx.

bool vnl_discrete_diff_sym	(	vnl_least_squares_function *	lsf,
		double	h,
		vnl_vector< double > const &	x,
		vnl_matrix< double > &	J
	)

symmetric differences.

Definition at line 62 of file vnl_discrete_diff.cxx.

bool vnl_discrete_diff_sym	(	vnl_least_squares_function *	lsf,
		vnl_vector< double > const &	h,
		vnl_vector< double > const &	x,
		vnl_matrix< double > &	J
	)

symmetric differences.

Definition at line 72 of file vnl_discrete_diff.cxx.

void vnl_discrete_diff_test_lsf	(	vnl_least_squares_function *	lsf,
		vnl_vector< double > const &	x
	)

Definition at line 108 of file vnl_discrete_diff.cxx.