NumericalDiff.cpp File Reference

#include <stdio.h>
#include "main.h"
#include <unsupported/Eigen/NumericalDiff>

Classes
struct	Functor< Scalar_, NX, NY >
struct	my_functor

Functions
void	test_forward ()
void	test_central ()
	EIGEN_DECLARE_TEST (NumericalDiff)

Function Documentation

EIGEN_DECLARE_TEST()

EIGEN_DECLARE_TEST

(

NumericalDiff

)

                                  {
  CALL_SUBTEST(test_forward());
  CALL_SUBTEST(test_central());
}

References CALL_SUBTEST, test_central(), and test_forward().

test_central()

void test_central

(

)

                    {
  VectorXd x(3);
  MatrixXd jac(15, 3);
  MatrixXd actual_jac(15, 3);
  my_functor functor;
 
  x << 0.082, 1.13, 2.35;
 
  // real one
  functor.actual_df(x, actual_jac);
 
  // using NumericalDiff
  NumericalDiff<my_functor, Central> numDiff(functor);
  numDiff.df(x, jac);
 
  VERIFY_IS_APPROX(jac, actual_jac);
}

References my_functor::actual_df(), Eigen::NumericalDiff< Functor_, mode >::df(), VERIFY_IS_APPROX, and plotDoE::x.

Referenced by EIGEN_DECLARE_TEST().

test_forward()

void test_forward

(

)

                    {
  VectorXd x(3);
  MatrixXd jac(15, 3);
  MatrixXd actual_jac(15, 3);
  my_functor functor;
 
  x << 0.082, 1.13, 2.35;
 
  // real one
  functor.actual_df(x, actual_jac);
  //    std::cout << actual_jac << std::endl << std::endl;
 
  // using NumericalDiff
  NumericalDiff<my_functor> numDiff(functor);
  numDiff.df(x, jac);
  //    std::cout << jac << std::endl;
 
  VERIFY_IS_APPROX(jac, actual_jac);
}

References my_functor::actual_df(), Eigen::NumericalDiff< Functor_, mode >::df(), VERIFY_IS_APPROX, and plotDoE::x.

Referenced by EIGEN_DECLARE_TEST().