Description:
This method returns the arcsine in radians of a number. The asin method returns a numeric value between -pi/2 and pi/2 radians for x between -1 and 1. If the value of number is outside this range, it returns NaN.
Syntax:
Math.asin( x ) ; |
- x : A number.
Return Value:
Returns the arcsine in radians of a number.Example:
<html>
<head>
<title>JavaScript Math asin() Method</title>
</head>
<body>
<script type="text/javascript">
var value = Math.asin(-1);
document.write("First Test Value : " + value );
var value = Math.asin(null);
document.write("<br />Second Test Value : " + value );
var value = Math.asin(30);
document.write("<br />Third Test Value : " + value );
var value = Math.asin("string");
document.write("<br />Fourth Test Value : " + value );
</script>
</body>
</html>
|
First Test Value : -1.5707963267948965 Second Test Value : 0 Third Test Value : NaN Fourth Test Value : NaN
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