Description:
This method returns the cosine of a number. The cos method returns a numeric value between -1 and 1, which represents the cosine of the angle.
Syntax:
Math.cos( x ) ; |
- x : A numbers.
Return Value:
Returns the cosine of a number.Example:
<html>
<head>
<title>JavaScript Math cos() Method</title>
</head>
<body>
<script type="text/javascript">
var value = Math.cos(90);
document.write("First Test Value : " + value );
var value = Math.cos(30);
document.write("<br />Second Test Value : " + value );
var value = Math.cos(-1);
document.write("<br />Third Test Value : " + value );
var value = Math.cos(2*Math.PI);
document.write("<br />Fourth Test Value : " + value );
</script>
</body>
</html>
|
First Test Value : -0.4480736161291701 Second Test Value : 0.15425144988758405 Third Test Value : 0.5403023058681398 Fourth Test Value : 1
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