mirror of https://github.com/tc39/test262.git
168 lines
5.1 KiB
JavaScript
168 lines
5.1 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: >
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Math.tan, recommended that implementations use the approximation
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algorithms for IEEE 754 arithmetic contained in fdlibm
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es5id: 15.8.2.18_A7
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description: >
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Checking if Math.tan is approximately equals to its mathematical
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values on the set of 64 argument values; all the sample values is
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calculated with LibC
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includes:
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- math_precision.js
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- math_isequal.js
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---*/
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// CHECK#1
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vnum = 64;
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var x = new Array();
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// Result is implementation dependent and varies on platform as you approach limits.
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// e.g. Output approaches Infinity as input approaches PI / 2 (1.5707963267948966)
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// The value of 1.5707 for x[0] is chosen below as an arbitrary cut off point for
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// expecting a result within the validation's tolerance range.
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x[0] = -1.5707;
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x[1] = -1.52092977673791570000;
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x[2] = -1.47106322668093490000;
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x[3] = -1.42119667662395410000;
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x[4] = -1.37133012656697330000;
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x[5] = -1.32146357650999220000;
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x[6] = -1.27159702645301140000;
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x[7] = -1.22173047639603060000;
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x[8] = -1.17186392633904980000;
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x[9] = -1.12199737628206900000;
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x[10] = -1.07213082622508820000;
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x[11] = -1.02226427616810730000;
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x[12] = -0.97239772611112640000;
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x[13] = -0.92253117605414559000;
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x[14] = -0.87266462599716477000;
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x[15] = -0.82279807594018395000;
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x[16] = -0.77293152588320302000;
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x[17] = -0.72306497582622220000;
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x[18] = -0.67319842576924138000;
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x[19] = -0.62333187571226056000;
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x[20] = -0.57346532565527975000;
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x[21] = -0.52359877559829870000;
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x[22] = -0.47373222554131811000;
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x[23] = -0.42386567548433729000;
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x[24] = -0.37399912542735625000;
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x[25] = -0.32413257537037543000;
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x[26] = -0.27426602531339461000;
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x[27] = -0.22439947525641379000;
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x[28] = -0.17453292519943298000;
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x[29] = -0.12466637514245216000;
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x[30] = -0.07479982508547133900;
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x[31] = -0.02493327502849052000;
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x[32] = 0.02493327502849052000;
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x[33] = 0.07479982508547133900;
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x[34] = 0.12466637514245216000;
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x[35] = 0.17453292519943298000;
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x[36] = 0.22439947525641379000;
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x[37] = 0.27426602531339461000;
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x[38] = 0.32413257537037543000;
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x[39] = 0.37399912542735625000;
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x[40] = 0.42386567548433707000;
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x[41] = 0.47373222554131766000;
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x[42] = 0.52359877559829915000;
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x[43] = 0.57346532565527975000;
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x[44] = 0.62333187571226034000;
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x[45] = 0.67319842576924138000;
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x[46] = 0.72306497582622198000;
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x[47] = 0.77293152588320302000;
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x[48] = 0.82279807594018406000;
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x[49] = 0.87266462599716466000;
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x[50] = 0.92253117605414570000;
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x[51] = 0.97239772611112629000;
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x[52] = 1.02226427616810730000;
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x[53] = 1.07213082622508840000;
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x[54] = 1.12199737628206900000;
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x[55] = 1.17186392633905000000;
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x[56] = 1.22173047639603060000;
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x[57] = 1.27159702645301120000;
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x[58] = 1.32146357650999220000;
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x[59] = 1.37133012656697330000;
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x[60] = 1.42119667662395390000;
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x[61] = 1.47106322668093490000;
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x[62] = 1.52092977673791550000;
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x[63] = 1.5707;
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var y = new Array();
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y[0] = -10381.32741756979;
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y[1] = -20.03689788997828100000;
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y[2] = -9.99349498241742220000;
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y[3] = -6.63456649978931170000;
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y[4] = -4.94671494494940060000;
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y[5] = -3.92724714760272690000;
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y[6] = -3.24192037576928720000;
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y[7] = -2.74747741945462160000;
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y[8] = -2.37228029184788760000;
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y[9] = -2.07652139657233640000;
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y[10] = -1.83630792973623100000;
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y[11] = -1.63642745273401610000;
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y[12] = -1.46673061342097340000;
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y[13] = -1.32018331365488460000;
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y[14] = -1.19175359259421000000;
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y[15] = -1.07774368351222650000;
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y[16] = -0.97537247158200291000;
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y[17] = -0.88250523616465493000;
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y[18] = -0.79747338888240393000;
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y[19] = -0.71895103828786056000;
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y[20] = -0.64586847728552887000;
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y[21] = -0.57735026918962551000;
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y[22] = -0.51267008667516678000;
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y[23] = -0.45121718317830323000;
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y[24] = -0.39247107881010240000;
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y[25] = -0.33598213147817668000;
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y[26] = -0.28135637451595324000;
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y[27] = -0.22824347439014994000;
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y[28] = -0.17632698070846500000;
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y[29] = -0.12531625823730441000;
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y[30] = -0.07493964001908703900;
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y[31] = -0.02493844305504610100;
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y[32] = 0.02493844305504610100;
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y[33] = 0.07493964001908703900;
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y[34] = 0.12531625823730441000;
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y[35] = 0.17632698070846500000;
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y[36] = 0.22824347439014994000;
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y[37] = 0.28135637451595324000;
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y[38] = 0.33598213147817668000;
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y[39] = 0.39247107881010240000;
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y[40] = 0.45121718317830301000;
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y[41] = 0.51267008667516623000;
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y[42] = 0.57735026918962618000;
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y[43] = 0.64586847728552887000;
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y[44] = 0.71895103828786022000;
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y[45] = 0.79747338888240393000;
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y[46] = 0.88250523616465459000;
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y[47] = 0.97537247158200291000;
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y[48] = 1.07774368351222670000;
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y[49] = 1.19175359259420950000;
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y[50] = 1.32018331365488510000;
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y[51] = 1.46673061342097320000;
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y[52] = 1.63642745273401610000;
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y[53] = 1.83630792973623190000;
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y[54] = 2.07652139657233640000;
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y[55] = 2.37228029184788890000;
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y[56] = 2.74747741945462160000;
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y[57] = 3.24192037576928450000;
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y[58] = 3.92724714760272690000;
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y[59] = 4.94671494494940060000;
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y[60] = 6.63456649978930190000;
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y[61] = 9.99349498241742220000;
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y[62] = 20.03689788997819200000;
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y[63] = 10381.32741756979;
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var val;
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for (i = 0; i < vnum; i++)
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{
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val = Math.tan(x[i]);
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if (!isEqual(val, y[i]))
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{
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$ERROR("\nx = " + x[i] + "\nlibc.tan(x) = " + y[i] + "\nMath.tan(x) = " + Math.tan(x[i]) + "\nMath.abs(libc.tan(x) - Math.tan(x)) > " + prec + "\n\n");
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}
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}
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