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163 lines
9.0 KiB
HTML
163 lines
9.0 KiB
HTML
11 years ago
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<!doctype html>
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<html>
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<head>
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<style>
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body {
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background-color: #F5F5F5;
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font-family: sans-serif;
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margin-right: 40px;
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}
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h2, h3, h4, h5, h6, h7
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{
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margin-top: 16px;
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margin-bottom: 4px;
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}
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.children { padding-left: 40px; }
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.definition
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{
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font-weight: bold;
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margin-bottom: 32px;
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}
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.example
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{
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padding: 5px 6px;
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font-weight: bold;
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font-size: 15px;
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background-color: #E6E6E6;
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margin-top: 11px;
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}
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.example > .children
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{
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padding-top: 11px;
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padding-left: 10px;
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}
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.example > .children > h7
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{
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font-size: 13px;
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}
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h7
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{
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font-size: 14px;
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font-weight: bold;
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margin-bottom: 2px;
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}
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pre
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{
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margin-top: 0px;
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padding: 6px 7px;
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background-color: #D9D9D9;
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font-weight: normal;
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font-size: 13px;
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}
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dl
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{
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margin: 5px 0px;
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}
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dt
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{
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font-weight: bold;
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}
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dd
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{
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font-size: 14px;
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font-weight: normal;
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margin-left: 8px;
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}
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dd > .children
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{
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font-size: 95%;
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}
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dd > .children > dl > dd
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{
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margin-left: 13px;
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}
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.exclamation
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{
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padding: 7px 8px;
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margin: 11px 0px;
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background-color: #FFE9AA;
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border: 1px solid yellow;
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font-size: 15px;
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font-weight: normal;
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}
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.text
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{
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font-size: 15px;
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font-weight: normal;
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margin-bottom: 14px;
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margin-top: 10px;
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}
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.toc
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{
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border: 1px solid gray;
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background-color: #E6E6E6;
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padding: 8px 9px;
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font-size: 15px;
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margin-bottom: 12px;
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}
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.toc h2
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{
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margin: 0px 0px 3px 0px;
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font-size: 19px;
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}
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.toc ul
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{
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margin-top: 0px;
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margin-bottom: 0px;
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padding-left: 25px;
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}
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.toc li
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{
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margin-bottom: 2px;
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}
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.toc .alternatives
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{
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font-size: 12px;
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}
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.toc a
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{
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color: #292722;
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}
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.toc a:hover
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{
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color: black;
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}
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.fixed
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{
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font-family: monospace;
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background-color: white;
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padding: 1px 4px;
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border: 1px solid silver;
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border-radius: 4px;
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}
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</style>
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</head>
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<body>
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<div class="children"><h1>Engine.Math</h1><div class="text">The Math library provides several functions to do mathematical operations or calculations. Most of these functions are simply aliases of the functions built into JavaScript.</div><div class="toc"><h2>Table of contents</h2><ul><li><a href="#Engine_Math_Absolutex">Engine.Math.Absolute(x)</a> Returns the absolute value of <span class="fixed">x</span>. <span class="alternatives">(also: Engine.Math.Abs(x))</span></li><li><a href="#Engine_Random_Sumitemitemitem">Engine.Random.Sum(item [, item [, item ...]])</a> Returns the sum of all supplied numbers. <span class="alternatives">(also: Engine.Random.Sum(itemarray))</span></li><li><a href="#Engine_Math_Roundx">Engine.Math.Round(x)</a> Rounds <span class="fixed">x</span> to the nearest integer. </li><li><a href="#Engine_Math_Ceilingx">Engine.Math.Ceiling(x)</a> Rounds up <span class="fixed">x</span>. <span class="alternatives">(also: Engine.Math.Ceil(x))</span></li><li><a href="#Engine_Math_Floorx">Engine.Math.Floor(x)</a> Rounds down <span class="fixed">x</span>. </li><li><a href="#Engine_Math_Tangentx">Engine.Math.Tangent(x)</a> Returns the tangent of angle <span class="fixed">x</span>. <span class="alternatives">(also: Engine.Math.Tan(x))</span></li><li><a href="#Engine_Math_Cosinex">Engine.Math.Cosine(x)</a> Returns the cosine of <span class="fixed">x</span>. <span class="alternatives">(also: Engine.Math.Cos(x))</span></li><li><a href="#Engine_Math_Sinex">Engine.Math.Sine(x)</a> Returns the sine of <span class="fixed">x</span>. <span class="alternatives">(also: Engine.Math.Sin(x))</span></li></ul></div><div class="definition"><a name="Engine_Math_Absolutex">Engine.Math.Absolute(<em>x</em>)<br>Engine.Math.Abs(<em>x</em>) <div class="children"><div class="text">Returns the absolute value of <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.abs function in JavaScript.</em></div><dl><dt>x</dt><dd>The number.<div class="children"></div></dd></dl><div class="example">Example: Get the absolute value of a positive number <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Absolute(16);</pre><h7>Output:</h7><pre class="output">16</pre></div></div><div class="example">Example: Get the absolute value of a negative number <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Absolute(-23);</pre><h7>Output:</h7><pre class="output">23</pre></div></div></div></a></div><div class="definition"><a name="Engine_Random_Sumitemitemitem">Engine.Random.Sum(<em>item</em> [, <em>item</em> [, <em>item</em> ...]])<br>Engine.Random.Sum(<em>itemarray</em>) <div class="children"><div class="text">Returns the sum of all supplied numbers.</div><dl><dt>item</dt><dd>An individual number. itemarray:: An array of numbers.<div class="children"></div></dd></dl><div class="example">Example: Sum several numbers using individual arguments <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Sum(42, 6, 17, 2, 7);</pre><h7>Output:</h7><pre class="output">74</pre></div></div><div class="example">Example: Sum several numbers using an array <div class="children"><h7>Code:</h7><pre class="code">var numbers = [42, 6, 17, 2, 7];
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Engine.Math.Sum(numbers);</pre><h7>Output:</h7><pre class="output">74</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Roundx">Engine.Math.Round(<em>x</em>) <div class="children"><div class="text">Rounds <span class="fixed">x</span> to the nearest integer.</div><div class="text"><em>This is an alias of the standard Math.round function in JavaScript.</em></div><dl><dt>x</dt><dd>The value to round.<div class="children"></div></dd></dl><div class="example">Example: Rounding a number in the upper half <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Ceiling(82.62);</pre><h7>Output:</h7><pre class="output">83</pre></div></div><div class="example">Example: Rounding a number in the lower half <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Ceiling(82.13);</pre><h7>Output:</h7><pre class="output">82</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Ceilingx">Engine.Math.Ceiling(<em>x</em>)<br>Engine.Math.Ceil(<em>x</em>) <div class="children"><div class="text">Rounds up <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.ceil function in JavaScript.</em></div><dl><dt>x</dt><dd>The value to round up.<div class="children"></div></dd></dl><div class="example">Example: Rounding up a number <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Ceiling(614.2162);</pre><h7>Output:</h7><pre class="output">615</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Floorx">Engine.Math.Floor(<em>x</em>) <div class="children"><div class="text">Rounds down <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.floor function in JavaScript.</em></div><dl><dt>x</dt><dd>The value to round down.<div class="children"></div></dd></dl><div class="example">Example: Rounding down a number <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Floor(7.612);</pre><h7>Output:</h7><pre class="output">7</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Tangentx">Engine.Math.Tangent(<em>x</em>)<br>Engine.Math.Tan(<em>x</em>) <div class="children"><div class="text">Returns the tangent of angle <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.tan function in JavaScript.</em></div><dl><dt>x</dt><dd>The value.<div class="children"></div></dd></dl><div class="example">Example: Calculating the tangent <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Tangent(84.15);</pre><h7>Output:</h7><pre class="output">-0.7971515163204654</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Cosinex">Engine.Math.Cosine(<em>x</em>)<br>Engine.Math.Cos(<em>x</em>) <div class="children"><div class="text">Returns the cosine of <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.cos function in JavaScript.</em></div><dl><dt>x</dt><dd>The value (in radians).<div class="children"></div></dd></dl><div class="example">Example: Calculating the cosine <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Cosine(162.54);</pre><h7>Output:</h7><pre class="output">0.6801581420388815</pre></div></div></div></a></div><div class="definition"><a name="Engine_Math_Sinex">Engine.Math.Sine(<em>x</em>)<br>Engine.Math.Sin(<em>x</em>) <div class="children"><div class="text">Returns the sine of <span class="fixed">x</span>.</div><div class="text"><em>This is an alias of the standard Math.sin function in JavaScript.</em></div><dl><dt>x</dt><dd>The value (in radians).<div class="children"></div></dd></dl><div class="example">Example: Calculating the sine <div class="children"><h7>Code:</h7><pre class="code">Engine.Math.Sine(62.4);</pre><h7>Output:</h7><pre class="output">-0.41855446451842543</pre></div></div></div></a></div></div>
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</body>
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</html>
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