Mega Code Archive
Math ceil()
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Syntax
math.ceil(num)
The ceil() method calculates the smallest integer that is greater than or equal to the number passed in as a parameter.
<html>
<body>
<title>Example of the ceil() method</title>
<script language="JavaScript">
<!--
function doMath(){
var inputNum=document.form1.input.value;
var result = Math.ceil(inputNum);
document.form1.answer.value = result;
}
-->
</script>
<form name=form1>
This example calculates ceiling of the entered number.
<br><br>
Enter First Number:
<input type="text" name="input" size=10>
<input type="button" value="Calculate" onClick='doMath()'>
<br>
The Ceil output is:
<input type="text" name="answer" size=10>
</form>
</body>
</html>
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