| // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
| // unit/quantity manipulation and conversion |
| // |
| // Copyright (C) 2009 Steven Watanabe |
| // |
| // Distributed under 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) |
| |
| /** |
| \file |
| |
| \brief test_trig.cpp |
| |
| \details |
| Test trigonometric functions. |
| |
| Output: |
| @verbatim |
| @endverbatim |
| **/ |
| |
| #include <cmath> |
| #include <boost/units/cmath.hpp> |
| #include <boost/units/systems/si/plane_angle.hpp> |
| #include <boost/units/systems/si/length.hpp> |
| #include <boost/units/systems/si/dimensionless.hpp> |
| #include <boost/units/systems/angle/degrees.hpp> |
| |
| #define BOOST_TEST_MAIN |
| #include <boost/test/unit_test.hpp> |
| |
| using boost::units::si::radians; |
| using boost::units::si::si_dimensionless; |
| using boost::units::degree::degrees; |
| BOOST_UNITS_STATIC_CONSTANT(degree_dimensionless, boost::units::degree::dimensionless); |
| using boost::units::si::meters; |
| BOOST_UNITS_STATIC_CONSTANT(heterogeneous_dimensionless, boost::units::reduce_unit<boost::units::si::dimensionless>::type); |
| |
| BOOST_AUTO_TEST_CASE(test_sin) { |
| BOOST_CHECK_EQUAL(boost::units::sin(2.0 * radians), std::sin(2.0) * si_dimensionless); |
| BOOST_CHECK_CLOSE_FRACTION(static_cast<double>(boost::units::sin(15.0 * degrees)), 0.2588, 0.0004); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_cos) { |
| BOOST_CHECK_EQUAL(boost::units::cos(2.0 * radians), std::cos(2.0) * si_dimensionless); |
| BOOST_CHECK_CLOSE_FRACTION(static_cast<double>(boost::units::cos(75.0 * degrees)), 0.2588, 0.0004); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_tan) { |
| BOOST_CHECK_EQUAL(boost::units::tan(2.0 * radians), std::tan(2.0) * si_dimensionless); |
| BOOST_CHECK_CLOSE_FRACTION(static_cast<double>(boost::units::tan(45.0 * degrees)), 1.0, 0.0001); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_asin) { |
| BOOST_CHECK_EQUAL(boost::units::asin(0.2 * si_dimensionless), std::asin(0.2) * radians); |
| BOOST_CHECK_CLOSE_FRACTION(boost::units::asin(0.5 * degree_dimensionless).value(), 30.0, 0.0001); |
| BOOST_CHECK_EQUAL(boost::units::asin(0.2 * heterogeneous_dimensionless).value(), std::asin(0.2)); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_acos) { |
| BOOST_CHECK_EQUAL(boost::units::acos(0.2 * si_dimensionless), std::acos(0.2) * radians); |
| BOOST_CHECK_CLOSE_FRACTION(boost::units::acos(0.5 * degree_dimensionless).value(), 60.0, 0.0001); |
| BOOST_CHECK_EQUAL(boost::units::acos(0.2 * heterogeneous_dimensionless).value(), std::acos(0.2)); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_atan) { |
| BOOST_CHECK_EQUAL(boost::units::atan(0.2 * si_dimensionless), std::atan(0.2) * radians); |
| BOOST_CHECK_CLOSE_FRACTION(boost::units::atan(1.0 * degree_dimensionless).value(), 45.0, 0.0001); |
| BOOST_CHECK_EQUAL(boost::units::atan(0.2 * heterogeneous_dimensionless).value(), std::atan(0.2)); |
| } |
| |
| BOOST_AUTO_TEST_CASE(test_atan2) { |
| BOOST_CHECK_EQUAL(boost::units::atan2(0.2 * si_dimensionless, 0.3 * si_dimensionless), std::atan2(0.2, 0.3) * radians); |
| BOOST_CHECK_EQUAL(boost::units::atan2(0.2 * meters, 0.3 * meters), std::atan2(0.2, 0.3) * radians); |
| BOOST_CHECK_CLOSE_FRACTION(boost::units::atan2(0.8660*degree_dimensionless,0.5*degree_dimensionless).value(), 60., 0.0002); |
| BOOST_CHECK_EQUAL(boost::units::atan2(0.2 * heterogeneous_dimensionless, 0.3 * heterogeneous_dimensionless).value(), std::atan2(0.2, 0.3)); |
| } |