Physics-game/vector_math.html at master · mikeherring/Physics-game · GitHub

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<!doctype html />
<html>
<head>
<script src="vector.js" type="text/javascript"></script>
<title>Vector Math</title>
</head>
<body onload="main();">
	<table>
        <tr valign="top">
            <td>
                <textarea id="output" rows=50 cols=50></textarea>
            </td>
            <td>
                <a href="index.html">Home</a>
	            <h1>Vector Math</h1>
                <p>New Features</p>
                <ul>
                    <li>Vector class</li>
                </ul>
            </td>
        </tr>
    </table>

    <script type="text/javascript">

        var output = document.getElementById("output");

        function writeOut(str)
        {
            output.value += str + "\n";
        }
        function writeVal(vari, valu)
        {
            writeOut(vari + " = " + valu);
        }

        function main()
        {
            var u = new Vector(1, 2);
            var v = new Vector(10, 20);
            writeVal("u", u.toString());
            writeVal("v", v.toString());

            // addition
            var w = u.add(v);
            writeOut("Vector Addition");
            writeVal("u+v", w.toString());

            // subtraction
            w = u.sub(v);
            writeOut("Vector Substraction");
            writeVal("u-v", w.toString());

            // magnitude
            writeOut("Magnitude");
            writeVal("|u|", u.mag());

            // dot product
            writeOut("Dot Product");
            writeVal("u*v", u.dot(v));

            // normalize
            writeOut("Unit Vector");
            w = v.unit();
            writeVal("v/|v|", w.toString());

            // scale
            writeOut("Scale");
            w = v.scale(50);
            writeVal("50v", w.toString());

            // scale
            writeOut("Normal");
            w = v.norm();
            writeVal("norm(v)", w.toString());
        }
    </script>
</body>
</html>