summaryrefslogtreecommitdiffhomepage
path: root/eigen/unsupported/test/NumericalDiff.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'eigen/unsupported/test/NumericalDiff.cpp')
-rw-r--r--eigen/unsupported/test/NumericalDiff.cpp114
1 files changed, 0 insertions, 114 deletions
diff --git a/eigen/unsupported/test/NumericalDiff.cpp b/eigen/unsupported/test/NumericalDiff.cpp
deleted file mode 100644
index 27d8880..0000000
--- a/eigen/unsupported/test/NumericalDiff.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2009 Thomas Capricelli <orzel@freehackers.org>
-
-#include <stdio.h>
-
-#include "main.h"
-#include <unsupported/Eigen/NumericalDiff>
-
-// Generic functor
-template<typename _Scalar, int NX=Dynamic, int NY=Dynamic>
-struct Functor
-{
- typedef _Scalar Scalar;
- enum {
- InputsAtCompileTime = NX,
- ValuesAtCompileTime = NY
- };
- typedef Matrix<Scalar,InputsAtCompileTime,1> InputType;
- typedef Matrix<Scalar,ValuesAtCompileTime,1> ValueType;
- typedef Matrix<Scalar,ValuesAtCompileTime,InputsAtCompileTime> JacobianType;
-
- int m_inputs, m_values;
-
- Functor() : m_inputs(InputsAtCompileTime), m_values(ValuesAtCompileTime) {}
- Functor(int inputs, int values) : m_inputs(inputs), m_values(values) {}
-
- int inputs() const { return m_inputs; }
- int values() const { return m_values; }
-
-};
-
-struct my_functor : Functor<double>
-{
- my_functor(void): Functor<double>(3,15) {}
- int operator()(const VectorXd &x, VectorXd &fvec) const
- {
- double tmp1, tmp2, tmp3;
- double y[15] = {1.4e-1, 1.8e-1, 2.2e-1, 2.5e-1, 2.9e-1, 3.2e-1, 3.5e-1,
- 3.9e-1, 3.7e-1, 5.8e-1, 7.3e-1, 9.6e-1, 1.34, 2.1, 4.39};
-
- for (int i = 0; i < values(); i++)
- {
- tmp1 = i+1;
- tmp2 = 16 - i - 1;
- tmp3 = (i>=8)? tmp2 : tmp1;
- fvec[i] = y[i] - (x[0] + tmp1/(x[1]*tmp2 + x[2]*tmp3));
- }
- return 0;
- }
-
- int actual_df(const VectorXd &x, MatrixXd &fjac) const
- {
- double tmp1, tmp2, tmp3, tmp4;
- for (int i = 0; i < values(); i++)
- {
- tmp1 = i+1;
- tmp2 = 16 - i - 1;
- tmp3 = (i>=8)? tmp2 : tmp1;
- tmp4 = (x[1]*tmp2 + x[2]*tmp3); tmp4 = tmp4*tmp4;
- fjac(i,0) = -1;
- fjac(i,1) = tmp1*tmp2/tmp4;
- fjac(i,2) = tmp1*tmp3/tmp4;
- }
- return 0;
- }
-};
-
-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);
-}
-
-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);
-}
-
-void test_NumericalDiff()
-{
- CALL_SUBTEST(test_forward());
- CALL_SUBTEST(test_central());
-}