jquery-turtle/test/numeric_functions.html at debuglog · Mirailite/jquery-turtle · GitHub

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<script src="lib/qunit.js"></script>
<link href="lib/qunit.css" rel="stylesheet">
<script src="lib/jquery.js"></script>
<script src="../jquery-turtle.js"></script>
<body>
<div id="qunit"></div>
<script>
eval($.turtle());
module("Numeric functions test.");
asyncTest("Tests special values of functions.", function() {
  ok(sin(0) === 0);
  ok(cos(0) === 1);
  ok(tan(0) === 0);
  ok(asin(0) === 0);
  ok(acos(1) === 0);
  ok(atan(0) === 0);

  ok(sind(0) === 0);
  ok(sind(30) === .5);
  ok(sind(90) === 1);
  ok(sind(150) === .5);
  ok(sind(180) === 0);
  ok(sind(210) === -.5);
  ok(sind(270) === -1);
  ok(sind(330) === -.5);
  ok(sind(360) === 0);

  ok(cosd(0) === 1);
  ok(cosd(60) === .5);
  ok(cosd(90) === 0);
  ok(cosd(120) === -.5);
  ok(cosd(180) === -1);
  ok(cosd(240) === -.5);
  ok(cosd(270) === 0);
  ok(cosd(300) === .5);

  ok(tand(0) === 0);
  ok(tand(45) === 1);
  ok(tand(90) === Infinity);
  ok(tand(135) === -1);
  ok(tand(180) === 0);
  ok(tand(225) === 1);
  ok(tand(270) === -Infinity);
  ok(tand(315) === -1);
  ok(tand(360) === 0);

  ok(asind(0) === 0);
  ok(asind(.5) === 30);
  ok(asind(1) === 90);
  ok(asind(-.5) === -30);
  ok(asind(-1) === -90);

  ok(acosd(1) === 0);
  ok(acosd(.5) === 60);
  ok(acosd(0) === 90);
  ok(acosd(-.5) === 120);
  ok(acosd(-1) === 180);

  ok(atand(0) === 0);
  ok(atand(1) === 45);
  ok(atand(Infinity) === 90);
  ok(atand(-1) === -45);
  ok(atand(0, 1) === 0);
  ok(atand(1, 1) === 45);
  ok(atand(Infinity, 1) === 90);
  ok(atand(-1, 1) === -45);
  ok(atand(0, -1) === 180);
  ok(atand(1, -1) === 135);
  ok(atand(-Infinity) === -90);
  ok(atand(-Infinity, 1) === -90);
  ok(atand(-1, -1) === -135);

  done(function() {
    start();
  });
});
</script>