| // Copyright John Maddock 2006. |
| // Copyright Paul A. Bristow 2007, 2009 |
| // Use, modification and distribution are subject to the |
| // Boost Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| #include <boost/math/concepts/real_concept.hpp> |
| #define BOOST_TEST_MAIN |
| #include <boost/test/unit_test.hpp> |
| #include <boost/test/floating_point_comparison.hpp> |
| #include <boost/math/special_functions/math_fwd.hpp> |
| #include <boost/math/constants/constants.hpp> |
| #include <boost/array.hpp> |
| #include <boost/random.hpp> |
| #include "functor.hpp" |
| |
| #include "handle_test_result.hpp" |
| #include "table_type.hpp" |
| |
| #ifndef SC_ |
| #define SC_(x) static_cast<typename table_type<T>::type>(BOOST_JOIN(x, L)) |
| #endif |
| |
| template <class Real, typename T> |
| void do_test_ellint_rf(T& data, const char* type_name, const char* test) |
| { |
| typedef Real value_type; |
| |
| std::cout << "Testing: " << test << std::endl; |
| |
| #if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) |
| value_type (*fp)(value_type, value_type, value_type) = boost::math::ellint_rf<value_type, value_type, value_type>; |
| #else |
| value_type (*fp)(value_type, value_type, value_type) = boost::math::ellint_rf; |
| #endif |
| boost::math::tools::test_result<value_type> result; |
| |
| result = boost::math::tools::test_hetero<Real>( |
| data, |
| bind_func<Real>(fp, 0, 1, 2), |
| extract_result<Real>(3)); |
| handle_test_result(result, data[result.worst()], result.worst(), |
| type_name, "boost::math::ellint_rf", test); |
| |
| std::cout << std::endl; |
| |
| } |
| |
| template <class Real, typename T> |
| void do_test_ellint_rc(T& data, const char* type_name, const char* test) |
| { |
| typedef Real value_type; |
| |
| std::cout << "Testing: " << test << std::endl; |
| |
| #if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) |
| value_type (*fp)(value_type, value_type) = boost::math::ellint_rc<value_type, value_type>; |
| #else |
| value_type (*fp)(value_type, value_type) = boost::math::ellint_rc; |
| #endif |
| boost::math::tools::test_result<value_type> result; |
| |
| result = boost::math::tools::test_hetero<Real>( |
| data, |
| bind_func<Real>(fp, 0, 1), |
| extract_result<Real>(2)); |
| handle_test_result(result, data[result.worst()], result.worst(), |
| type_name, "boost::math::ellint_rc", test); |
| |
| std::cout << std::endl; |
| |
| } |
| |
| template <class Real, typename T> |
| void do_test_ellint_rj(T& data, const char* type_name, const char* test) |
| { |
| typedef Real value_type; |
| |
| std::cout << "Testing: " << test << std::endl; |
| |
| #if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) |
| value_type (*fp)(value_type, value_type, value_type, value_type) = boost::math::ellint_rj<value_type, value_type, value_type, value_type>; |
| #else |
| value_type (*fp)(value_type, value_type, value_type, value_type) = boost::math::ellint_rj; |
| #endif |
| boost::math::tools::test_result<value_type> result; |
| |
| result = boost::math::tools::test_hetero<Real>( |
| data, |
| bind_func<Real>(fp, 0, 1, 2, 3), |
| extract_result<Real>(4)); |
| handle_test_result(result, data[result.worst()], result.worst(), |
| type_name, "boost::math::ellint_rj", test); |
| |
| std::cout << std::endl; |
| |
| } |
| |
| template <class Real, typename T> |
| void do_test_ellint_rd(T& data, const char* type_name, const char* test) |
| { |
| typedef Real value_type; |
| |
| std::cout << "Testing: " << test << std::endl; |
| |
| #if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) |
| value_type (*fp)(value_type, value_type, value_type) = boost::math::ellint_rd<value_type, value_type, value_type>; |
| #else |
| value_type (*fp)(value_type, value_type, value_type) = boost::math::ellint_rd; |
| #endif |
| boost::math::tools::test_result<value_type> result; |
| |
| result = boost::math::tools::test_hetero<Real>( |
| data, |
| bind_func<Real>(fp, 0, 1, 2), |
| extract_result<Real>(3)); |
| handle_test_result(result, data[result.worst()], result.worst(), |
| type_name, "boost::math::ellint_rd", test); |
| |
| std::cout << std::endl; |
| |
| } |
| |
| template <class Real, typename T> |
| void do_test_ellint_rg(T& data, const char* type_name, const char* test) |
| { |
| typedef Real value_type; |
| |
| std::cout << "Testing: " << test << std::endl; |
| |
| #if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) |
| value_type(*fp)(value_type, value_type, value_type) = boost::math::ellint_rg<value_type, value_type, value_type>; |
| #else |
| value_type(*fp)(value_type, value_type, value_type) = boost::math::ellint_rg; |
| #endif |
| boost::math::tools::test_result<value_type> result; |
| |
| result = boost::math::tools::test_hetero<Real>( |
| data, |
| bind_func<Real>(fp, 0, 1, 2), |
| extract_result<Real>(3)); |
| handle_test_result(result, data[result.worst()], result.worst(), |
| type_name, "boost::math::ellint_rg", test); |
| |
| std::cout << std::endl; |
| |
| } |
| |
| template <typename T> |
| void test_spots(T, const char* type_name) |
| { |
| #ifndef TEST_UDT |
| using namespace boost::math; |
| using namespace std; |
| // Spot values from Numerical Computation of Real or Complex |
| // Elliptic Integrals, B. C. Carlson: http://arxiv.org/abs/math.CA/9409227 |
| // RF: |
| T tolerance = (std::max)(T(1e-13f), tools::epsilon<T>() * 5) * 100; // Note 5eps expressed as a persentage!!! |
| T eps2 = 5 * tools::epsilon<T>(); |
| BOOST_CHECK_CLOSE(ellint_rf(T(1), T(2), T(0)), T(1.3110287771461), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rf(T(0.5), T(1), T(0)), T(1.8540746773014), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rf(T(2), T(3), T(4)), T(0.58408284167715), tolerance); |
| // RC: |
| BOOST_CHECK_CLOSE_FRACTION(ellint_rc(T(0), T(1)/4), boost::math::constants::pi<T>(), eps2); |
| BOOST_CHECK_CLOSE_FRACTION(ellint_rc(T(9)/4, T(2)), boost::math::constants::ln_two<T>(), eps2); |
| BOOST_CHECK_CLOSE_FRACTION(ellint_rc(T(1) / 4, T(-2)), boost::math::constants::ln_two<T>() / 3, eps2); |
| // RJ: |
| BOOST_CHECK_CLOSE(ellint_rj(T(0), T(1), T(2), T(3)), T(0.77688623778582), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rj(T(2), T(3), T(4), T(5)), T(0.14297579667157), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rj(T(2), T(3), T(4), T(-0.5)), T(0.24723819703052), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rj(T(2), T(3), T(4), T(-5)), T(-0.12711230042964), tolerance); |
| // RD: |
| BOOST_CHECK_CLOSE(ellint_rd(T(0), T(2), T(1)), T(1.7972103521034), tolerance); |
| BOOST_CHECK_CLOSE(ellint_rd(T(2), T(3), T(4)), T(0.16510527294261), tolerance); |
| |
| // Sanity/consistency checks from Numerical Computation of Real or Complex |
| // Elliptic Integrals, B. C. Carlson: http://arxiv.org/abs/math.CA/9409227 |
| boost::mt19937 ran; |
| boost::uniform_real<float> ur(0, 1000); |
| T eps40 = 40 * tools::epsilon<T>(); |
| |
| for(unsigned i = 0; i < 1000; ++i) |
| { |
| T x = ur(ran); |
| T y = ur(ran); |
| T z = ur(ran); |
| T lambda = ur(ran); |
| T mu = x * y / lambda; |
| // RF, eq 49: |
| T s1 = ellint_rf(x+lambda, y+lambda, lambda) + |
| ellint_rf(x + mu, y + mu, mu); |
| T s2 = ellint_rf(x, y, T(0)); |
| BOOST_CHECK_CLOSE_FRACTION(s1, s2, eps40); |
| // RC is degenerate case of RF: |
| s1 = ellint_rc(x, y); |
| s2 = ellint_rf(x, y, y); |
| BOOST_CHECK_CLOSE_FRACTION(s1, s2, eps40); |
| // RC, eq 50 (Note have to assume y = x): |
| T mu2 = x * x / lambda; |
| s1 = ellint_rc(lambda, x+lambda) |
| + ellint_rc(mu2, x + mu2); |
| s2 = ellint_rc(T(0), x); |
| BOOST_CHECK_CLOSE_FRACTION(s1, s2, eps40); |
| /* |
| T p = ????; // no closed form for a, b and p??? |
| s1 = ellint_rj(x+lambda, y+lambda, lambda, p+lambda) |
| + ellint_rj(x+mu, y+mu, mu, p+mu); |
| s2 = ellint_rj(x, y, T(0), p) |
| - 3 * ellint_rc(a, b); |
| */ |
| // RD, eq 53: |
| s1 = ellint_rd(lambda, x+lambda, y+lambda) |
| + ellint_rd(mu, x+mu, y+mu); |
| s2 = ellint_rd(T(0), x, y) |
| - 3 / (y * sqrt(x+y+lambda+mu)); |
| BOOST_CHECK_CLOSE_FRACTION(s1, s2, eps40); |
| // RD is degenerate case of RJ: |
| s1 = ellint_rd(x, y, z); |
| s2 = ellint_rj(x, y, z, z); |
| BOOST_CHECK_CLOSE_FRACTION(s1, s2, eps40); |
| } |
| #endif |
| // |
| // Now random spot values: |
| // |
| #include "ellint_rf_data.ipp" |
| |
| do_test_ellint_rf<T>(ellint_rf_data, type_name, "RF: Random data"); |
| |
| #include "ellint_rf_xxx.ipp" |
| |
| do_test_ellint_rf<T>(ellint_rf_xxx, type_name, "RF: x = y = z"); |
| |
| #include "ellint_rf_xyy.ipp" |
| |
| do_test_ellint_rf<T>(ellint_rf_xyy, type_name, "RF: x = y or y = z or x = z"); |
| |
| #include "ellint_rf_0yy.ipp" |
| |
| do_test_ellint_rf<T>(ellint_rf_0yy, type_name, "RF: x = 0, y = z"); |
| |
| #include "ellint_rf_xy0.ipp" |
| |
| do_test_ellint_rf<T>(ellint_rf_xy0, type_name, "RF: z = 0"); |
| |
| #include "ellint_rc_data.ipp" |
| |
| do_test_ellint_rc<T>(ellint_rc_data, type_name, "RC: Random data"); |
| |
| #include "ellint_rj_data.ipp" |
| |
| do_test_ellint_rj<T>(ellint_rj_data, type_name, "RJ: Random data"); |
| |
| #include "ellint_rj_e4.ipp" |
| |
| do_test_ellint_rj<T>(ellint_rj_e4, type_name, "RJ: 4 Equal Values"); |
| |
| #include "ellint_rj_e3.ipp" |
| |
| do_test_ellint_rj<T>(ellint_rj_e3, type_name, "RJ: 3 Equal Values"); |
| |
| #include "ellint_rj_e2.ipp" |
| |
| do_test_ellint_rj<T>(ellint_rj_e2, type_name, "RJ: 2 Equal Values"); |
| |
| #include "ellint_rj_zp.ipp" |
| |
| do_test_ellint_rj<T>(ellint_rj_zp, type_name, "RJ: Equal z and p"); |
| |
| #include "ellint_rd_data.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_data, type_name, "RD: Random data"); |
| |
| #include "ellint_rd_xyy.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_xyy, type_name, "RD: y = z"); |
| |
| #include "ellint_rd_xxz.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_xxz, type_name, "RD: x = y"); |
| |
| #include "ellint_rd_0yy.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_0yy, type_name, "RD: x = 0, y = z"); |
| |
| #include "ellint_rd_xxx.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_xxx, type_name, "RD: x = y = z"); |
| |
| #include "ellint_rd_0xy.ipp" |
| |
| do_test_ellint_rd<T>(ellint_rd_0xy, type_name, "RD: x = 0"); |
| |
| #include "ellint_rg.ipp" |
| |
| do_test_ellint_rg<T>(ellint_rg, type_name, "RG: Random Data"); |
| |
| #include "ellint_rg_00x.ipp" |
| |
| do_test_ellint_rg<T>(ellint_rg_00x, type_name, "RG: two values 0"); |
| |
| #include "ellint_rg_xxx.ipp" |
| |
| do_test_ellint_rg<T>(ellint_rg_xxx, type_name, "RG: All values the same or zero"); |
| |
| #include "ellint_rg_xyy.ipp" |
| |
| do_test_ellint_rg<T>(ellint_rg_xyy, type_name, "RG: two values the same"); |
| |
| #include "ellint_rg_xy0.ipp" |
| |
| do_test_ellint_rg<T>(ellint_rg_xy0, type_name, "RG: one value zero"); |
| } |
| |