// Copyright 2009 the Sputnik authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /** * If y>0 and y is finite and x is equal to -Infinity, Math.atan2(y,x) is an implementation-dependent approximation to +PI * * @path 15_Native/15.8_The_Math_Object/15.8.2_Function_Properties_of_the_Math_Object/15.8.2.5_atan2/S15.8.2.5_A15.js * @description Checking if Math.atan2(y,x) is an approximation to +PI, where y>0 and y is finite and x is equal to -Infinity */ $INCLUDE("math_precision.js"); $INCLUDE("math_isequal.js"); // CHECK#1 x = -Infinity; y = new Array(); y[0] = 0.000000000000001; y[1] = 1; y[2] = 1.7976931348623157E308; //largest finite number ynum = 3; for (i = 0; i < ynum; i++) { if (!isEqual(Math.atan2(y[i],x),Math.PI)) $FAIL("#1: Math.abs(Math.atan2(" + y[i] + ", " + x + ") - Math.PI) >= " + prec); }