1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// 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/io.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>
#include "test_close.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);
void test_sin() {
BOOST_TEST_EQ(boost::units::sin(2.0 * radians), std::sin(2.0) * si_dimensionless);
BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::sin(15.0 * degrees)), 0.2588, 0.0004);
}
void test_cos() {
BOOST_TEST_EQ(boost::units::cos(2.0 * radians), std::cos(2.0) * si_dimensionless);
BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::cos(75.0 * degrees)), 0.2588, 0.0004);
}
void test_tan() {
BOOST_TEST_EQ(boost::units::tan(2.0 * radians), std::tan(2.0) * si_dimensionless);
BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::tan(45.0 * degrees)), 1.0, 0.0001);
}
void test_asin() {
BOOST_TEST_EQ(boost::units::asin(0.2 * si_dimensionless), std::asin(0.2) * radians);
BOOST_UNITS_TEST_CLOSE(boost::units::asin(0.5 * degree_dimensionless).value(), 30.0, 0.0001);
BOOST_TEST_EQ(boost::units::asin(0.2 * heterogeneous_dimensionless).value(), std::asin(0.2));
}
void test_acos() {
BOOST_TEST_EQ(boost::units::acos(0.2 * si_dimensionless), std::acos(0.2) * radians);
BOOST_UNITS_TEST_CLOSE(boost::units::acos(0.5 * degree_dimensionless).value(), 60.0, 0.0001);
BOOST_TEST_EQ(boost::units::acos(0.2 * heterogeneous_dimensionless).value(), std::acos(0.2));
}
void test_atan() {
BOOST_TEST_EQ(boost::units::atan(0.2 * si_dimensionless), std::atan(0.2) * radians);
BOOST_UNITS_TEST_CLOSE(boost::units::atan(1.0 * degree_dimensionless).value(), 45.0, 0.0001);
BOOST_TEST_EQ(boost::units::atan(0.2 * heterogeneous_dimensionless).value(), std::atan(0.2));
}
void test_atan2() {
BOOST_TEST_EQ(boost::units::atan2(0.2 * si_dimensionless, 0.3 * si_dimensionless), std::atan2(0.2, 0.3) * radians);
BOOST_TEST_EQ(boost::units::atan2(0.2 * meters, 0.3 * meters), std::atan2(0.2, 0.3) * radians);
BOOST_UNITS_TEST_CLOSE(boost::units::atan2(0.8660*degree_dimensionless,0.5*degree_dimensionless).value(), 60., 0.0002);
BOOST_TEST_EQ(boost::units::atan2(0.2 * heterogeneous_dimensionless, 0.3 * heterogeneous_dimensionless).value(), std::atan2(0.2, 0.3));
}
int main()
{
test_sin();
test_cos();
test_tan();
test_asin();
test_acos();
test_atan();
test_atan2();
return boost::report_errors();
}
|
