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| 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are |
| 4 // met: |
| 5 // |
| 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. |
| 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 |
| 28 // Flags: --harmony-maths |
| 29 |
| 30 [Math.sinh, Math.cosh, Math.tanh, Math.asinh, Math.acosh, Math.atanh]. |
| 31 forEach(function(fun) { |
| 32 assertTrue(isNaN(fun(NaN))); |
| 33 assertTrue(isNaN(fun("abc"))); |
| 34 assertTrue(isNaN(fun({}))); |
| 35 assertEquals(fun(0), fun([])); |
| 36 assertTrue(isNaN(fun([1, 1]))); |
| 37 assertEquals(fun(1.11), fun({ toString: function() { return "1.11"; } })); |
| 38 assertEquals(fun(-3.1), fun({ toString: function() { return -3.1; } })); |
| 39 assertEquals(fun(-1.1), fun({ valueOf: function() { return "-1.1"; } })); |
| 40 assertEquals(fun(3.11), fun({ valueOf: function() { return 3.11; } })); |
| 41 }); |
| 42 |
| 43 |
| 44 function test_id(fun, rev, value) { |
| 45 assertEqualsDelta(1, rev(fun(value))/value, 1E-7); |
| 46 } |
| 47 |
| 48 [Math.PI, 2, 5, 1E-5, 0.3].forEach(function(x) { |
| 49 test_id(Math.sinh, Math.asinh, x); |
| 50 test_id(Math.sinh, Math.asinh, -x); |
| 51 test_id(Math.cosh, Math.acosh, x); |
| 52 test_id(Math.tanh, Math.atanh, x); |
| 53 test_id(Math.tanh, Math.atanh, -x); |
| 54 }); |
| 55 |
| 56 |
| 57 [Math.sinh, Math.asinh, Math.tanh, Math.atanh].forEach(function(fun) { |
| 58 assertEquals("-Infinity", String(1/fun(-0))); |
| 59 assertEquals("Infinity", String(1/fun(0))); |
| 60 }); |
| 61 |
| 62 |
| 63 [Math.sinh, Math.asinh, Math.cosh].forEach(function(fun) { |
| 64 assertEquals("-Infinity", String(fun(-Infinity))); |
| 65 assertEquals("Infinity", String(fun(Infinity))); |
| 66 assertEquals("-Infinity", String(fun("-Infinity"))); |
| 67 assertEquals("Infinity", String(fun("Infinity"))); |
| 68 }); |
| 69 |
| 70 |
| 71 assertEquals("-Infinity", String(Math.atanh(-1))); |
| 72 assertEquals("Infinity", String(Math.atanh(1))); |
| 73 |
| 74 // Math.atanh(x) is NaN for |x| > 1 and NaN |
| 75 [1.000000000001, Math.PI, 10000000, 2, Infinity, NaN].forEach(function(x) { |
| 76 assertTrue(isNaN(Math.atanh(-x))); |
| 77 assertTrue(isNaN(Math.atanh(x))); |
| 78 }); |
| 79 |
| 80 |
| 81 assertEquals(1, Math.tanh(Infinity)); |
| 82 assertEquals(-1, Math.tanh(-Infinity)); |
| 83 assertEquals(1, Math.cosh(0)); |
| 84 assertEquals(1, Math.cosh(-0)); |
| 85 |
| 86 assertEquals(0, Math.acosh(1)); |
| 87 assertEquals("Infinity", String(Math.acosh(Infinity))); |
| 88 |
| 89 // Math.acosh(x) is NaN for x < 1 |
| 90 [0.99999999999, 0.2, -1000, 0, -0].forEach(function(x) { |
| 91 assertTrue(isNaN(Math.acosh(x))); |
| 92 }); |
| 93 |
| 94 |
| 95 // Some random samples. |
| 96 assertEqualsDelta(0.5210953054937, Math.sinh(0.5), 1E-12); |
| 97 assertEqualsDelta(74.203210577788, Math.sinh(5), 1E-12); |
| 98 assertEqualsDelta(-0.5210953054937, Math.sinh(-0.5), 1E-12); |
| 99 assertEqualsDelta(-74.203210577788, Math.sinh(-5), 1E-12); |
| 100 |
| 101 assertEqualsDelta(1.1276259652063, Math.cosh(0.5), 1E-12); |
| 102 assertEqualsDelta(74.209948524787, Math.cosh(5), 1E-12); |
| 103 assertEqualsDelta(1.1276259652063, Math.cosh(-0.5), 1E-12); |
| 104 assertEqualsDelta(74.209948524787, Math.cosh(-5), 1E-12); |
| 105 |
| 106 assertEqualsDelta(0.4621171572600, Math.tanh(0.5), 1E-12); |
| 107 assertEqualsDelta(0.9999092042625, Math.tanh(5), 1E-12); |
| 108 assertEqualsDelta(-0.4621171572600, Math.tanh(-0.5), 1E-12); |
| 109 assertEqualsDelta(-0.9999092042625, Math.tanh(-5), 1E-12); |
| 110 |
| 111 assertEqualsDelta(0.4812118250596, Math.asinh(0.5), 1E-12); |
| 112 assertEqualsDelta(2.3124383412727, Math.asinh(5), 1E-12); |
| 113 assertEqualsDelta(-0.4812118250596, Math.asinh(-0.5), 1E-12); |
| 114 assertEqualsDelta(-2.3124383412727, Math.asinh(-5), 1E-12); |
| 115 |
| 116 assertEqualsDelta(0.9624236501192, Math.acosh(1.5), 1E-12); |
| 117 assertEqualsDelta(2.2924316695612, Math.acosh(5), 1E-12); |
| 118 assertEqualsDelta(0.4435682543851, Math.acosh(1.1), 1E-12); |
| 119 assertEqualsDelta(1.3169578969248, Math.acosh(2), 1E-12); |
| 120 |
| 121 assertEqualsDelta(0.5493061443341, Math.atanh(0.5), 1E-12); |
| 122 assertEqualsDelta(0.1003353477311, Math.atanh(0.1), 1E-12); |
| 123 assertEqualsDelta(-0.5493061443341, Math.atanh(-0.5), 1E-12); |
| 124 assertEqualsDelta(-0.1003353477311, Math.atanh(-0.1), 1E-12); |
| 125 |
| 126 [0, 1E-50, 1E-10, 1E10, 1E50, 1E100, 1E150].forEach(function(x) { |
| 127 assertEqualsDelta(Math.asinh(x), -Math.asinh(-x), 1E-12); |
| 128 }); |
| 129 |
| 130 [1-(1E-16), 0, 1E-10, 1E-50].forEach(function(x) { |
| 131 assertEqualsDelta(Math.atanh(x), -Math.atanh(-x), 1E-12); |
| 132 }); |
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