How to use cos in JavaScript
In this article, I will explain use of cos() method in JavaScript.
JavaScript cos() Method
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cos() method of math object returns the cosine of a number.
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cos() method returns a numeric value between -1 and 1.
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In cos() method, numeric value represents the cosine of the angle.
Syntax
Example
In the following example show to cos() method returns the cosine of numbers.
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<html>
<head>
</head>
<body>
<h3 style="color:Blue">JavaScript cos() Method Example</h3>
<script type="text/javascript">
var a = Math.cos(30);
document.write("First Test cos Value : " + a);
var b = Math.cos(60);
document.write("<br />Second Test cos Value : " + b);
var c = Math.cos(-1);
document.write("<br />Third Test cos Value : " + c);
var d = Math.cos(2 * Math.PI);
document.write("<br />Fourth Test cos Value : " + d);
</script>
</body>
</html>
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Output
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