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Struts example source code file (math.js)
The Struts math.js source code/* Copyright (c) 2004-2006, The Dojo Foundation All Rights Reserved. Licensed under the Academic Free License version 2.1 or above OR the modified BSD license. For more information on Dojo licensing, see: http://dojotoolkit.org/community/licensing.shtml */ dojo.provide("dojo.math"); dojo.math.degToRad = function (x) { return (x * Math.PI) / 180; }; dojo.math.radToDeg = function (x) { return (x * 180) / Math.PI; }; dojo.math.factorial = function (n) { if (n < 1) { return 0; } var retVal = 1; for (var i = 1; i <= n; i++) { retVal *= i; } return retVal; }; dojo.math.permutations = function (n, k) { if (n == 0 || k == 0) { return 1; } return (dojo.math.factorial(n) / dojo.math.factorial(n - k)); }; dojo.math.combinations = function (n, r) { if (n == 0 || r == 0) { return 1; } return (dojo.math.factorial(n) / (dojo.math.factorial(n - r) * dojo.math.factorial(r))); }; dojo.math.bernstein = function (t, n, i) { return (dojo.math.combinations(n, i) * Math.pow(t, i) * Math.pow(1 - t, n - i)); }; dojo.math.gaussianRandom = function () { var k = 2; do { var i = 2 * Math.random() - 1; var j = 2 * Math.random() - 1; k = i * i + j * j; } while (k >= 1); k = Math.sqrt((-2 * Math.log(k)) / k); return i * k; }; dojo.math.mean = function () { var array = dojo.lang.isArray(arguments[0]) ? arguments[0] : arguments; var mean = 0; for (var i = 0; i < array.length; i++) { mean += array[i]; } return mean / array.length; }; dojo.math.round = function (number, places) { if (!places) { var shift = 1; } else { var shift = Math.pow(10, places); } return Math.round(number * shift) / shift; }; dojo.math.sd = dojo.math.standardDeviation = function () { var array = dojo.lang.isArray(arguments[0]) ? arguments[0] : arguments; return Math.sqrt(dojo.math.variance(array)); }; dojo.math.variance = function () { var array = dojo.lang.isArray(arguments[0]) ? arguments[0] : arguments; var mean = 0, squares = 0; for (var i = 0; i < array.length; i++) { mean += array[i]; squares += Math.pow(array[i], 2); } return (squares / array.length) - Math.pow(mean / array.length, 2); }; dojo.math.range = function (a, b, step) { if (arguments.length < 2) { b = a; a = 0; } if (arguments.length < 3) { step = 1; } var range = []; if (step > 0) { for (var i = a; i < b; i += step) { range.push(i); } } else { if (step < 0) { for (var i = a; i > b; i += step) { range.push(i); } } else { throw new Error("dojo.math.range: step must be non-zero"); } } return range; }; Other Struts examples (source code examples)Here is a short list of links related to this Struts math.js source code file: |
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