# Javascript Square root Calculator

This javascript square root calculator is used to calculate square root of a number. This squareroot calculator is for free use.

# Features

• You can calculate square root of any number using this javascript calculator.
• This is a free square root calculator.
• Just copy the code and use it.

# Preview

Square root-Calculator

 Enter a Number : The SqureRoot :

Javascript code

<!-- Script by hscripts.com -->
<script type="text/javascript">
function sqr(num)
{
var no=parseFloat(num.value);
if(isNaN(no))
{
num.value="";
document.frm.res.value="";
num.focus();
}
else
{
document.frm.res.value=Math.sqrt(no).toFixed(2);
} } function incheck(event,no) {
var kc;
if(window.event)
{
kc=event.keyCode;
}
else
{
kc=event.which;
}
var num=no.value;
if(kc==46)
{
if(num.indexOf(".")==-1)
{
return true;
}
else
{
return false;
}
}
if(kc==48)
{
if(num.indexOf("-")==0 && num.length==1)
{
return false;
}
if(num=="")
{
return false;
}
else
{
return true;
}
}if (kc!=8 && kc!=0)
{
if (kc<49||kc>57)
{
return false;
}
}
} </script>
<!-- Script by hscripts.com -->

HTML Code
<form name="frm">
Enter a Number :<input type="text" name="number" onkeypress="return
incheck(event,number)">
<input type="button" value="SqureRoot" onclick="sqr(number)">
The SqureRoot :<input type="text" name="res" readonly>
</form>
• Release Date - 07-04-2008
• For customization of this script or any script development, mail to support@hscripts.com

# Usage

• He we have explained with a form
• Create the form using following HTML code
• ```<form name="frm">
Enter a Number :<input type="text" name="number" onkeypress="return   incheck(event,number)">
<input type="button" value="SqureRoot" onclick="sqr(number)">
The SquareRoot :<input type="text" name="res" readonly>