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29 lines
751 B
JavaScript
29 lines
751 B
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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* If y is equal to +0 and x<0, Math.atan2(y,x) is an implementation-dependent approximation to +PI
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*
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* @path ch15/15.8/15.8.2/15.8.2.5/S15.8.2.5_A7.js
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* @description Checking if Math.atan2(y,x) is an approximation to +PI, where y is equal to +0 and x<0
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*/
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$INCLUDE("math_precision.js");
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$INCLUDE("math_isequal.js");
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// CHECK#1
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y = +0;
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//prec = 0.00000000000001;
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x = new Array();
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x[0] = -0.000000000000001;
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x[2] = -Infinity;
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x[1] = -1;
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xnum = 3;
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for (i = 0; i < xnum; i++)
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{
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if (!isEqual(Math.atan2(y,x[i]), Math.PI))
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$FAIL("#1: Math.abs(Math.atan2(" + y + ", " + x[i] + ") - Math.PI) >= " + prec);
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}
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