/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /** File Name: 15.8.2.2.js ECMA Section: 15.8.2.2 acos( x ) Description: return an approximation to the arc cosine of the argument. the result is expressed in radians and range is from +0 to +PI. special cases: - if x is NaN, return NaN - if x > 1, the result is NaN - if x < -1, the result is NaN - if x == 1, the result is +0 Author: christine@netscape.com Date: 7 july 1997 */ var SECTION = "15.8.2.2"; var VERSION = "ECMA_1"; startTest(); var TITLE = "Math.acos()"; writeHeaderToLog( SECTION + " "+ TITLE); new TestCase( SECTION, "Math.acos.length", 1, Math.acos.length ); new TestCase( SECTION, "Math.acos(void 0)", Number.NaN, Math.acos(void 0) ); new TestCase( SECTION, "Math.acos()", Number.NaN, Math.acos() ); new TestCase( SECTION, "Math.acos(null)", Math.PI/2, Math.acos(null) ); new TestCase( SECTION, "Math.acos(NaN)", Number.NaN, Math.acos(Number.NaN) ); new TestCase( SECTION, "Math.acos(a string)", Number.NaN, Math.acos("a string") ); new TestCase( SECTION, "Math.acos('0')", Math.PI/2, Math.acos('0') ); new TestCase( SECTION, "Math.acos('1')", 0, Math.acos('1') ); new TestCase( SECTION, "Math.acos('-1')", Math.PI, Math.acos('-1') ); new TestCase( SECTION, "Math.acos(1.00000001)", Number.NaN, Math.acos(1.00000001) ); new TestCase( SECTION, "Math.acos(11.00000001)", Number.NaN, Math.acos(-1.00000001) ); new TestCase( SECTION, "Math.acos(1)", 0, Math.acos(1) ); new TestCase( SECTION, "Math.acos(-1)", Math.PI, Math.acos(-1) ); new TestCase( SECTION, "Math.acos(0)", Math.PI/2, Math.acos(0) ); new TestCase( SECTION, "Math.acos(-0)", Math.PI/2, Math.acos(-0) ); new TestCase( SECTION, "Math.acos(Math.SQRT1_2)", Math.PI/4, Math.acos(Math.SQRT1_2)); new TestCase( SECTION, "Math.acos(-Math.SQRT1_2)", Math.PI/4*3, Math.acos(-Math.SQRT1_2)); new TestCase( SECTION, "Math.acos(0.9999619230642)", Math.PI/360, Math.acos(0.9999619230642)); new TestCase( SECTION, "Math.acos(-3.0)", Number.NaN, Math.acos(-3.0)); test();