JavaScript Tutorial/Math/SQRT1 2
Версия от 18:52, 25 мая 2010; (обсуждение)
Math.SQRT1_2
The SQRT1_2 property returns the square root of one half, which is approximately 0.707.
<html>
<body>
<script language="JavaScript">
<!--
function doMath(){
var result = Math.SQRT1_2;
document.form1.answer.value = result;
}
-->
</script>
<form name=form1>
The square root of 1/2 is:
<input type="text" name="answer" size=20>
<input type="button" value="Calculate" onClick="doMath()">
<br>
</form>
</body>
</html>
The value of the square root of 1/2: Math.SQRT1_2
<html>
<head>
<title>The Properties of the Math object</title>
<script type="text/javascript" language="javascript">
<!-- //
function DisplayMath(){
document.write("<br/><P>The value of the square root of 1/2 is: " + Math.SQRT1_2 + "</p>");
}
// -->
</script>
</head>
<body onload="DisplayMath()">
</body>
</html>