Saturday, November 21, 2015

Square Root Calculator in JavaScript

A simple program that I wrote that will compute the square root of a number in JavaScript. The code is very simple  and easy to understand.

If you  have some questions please send me an email at jake.r.pomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.



Sample Program Output


Program Listing

<html>
<title> Square Root Calculator in JavaScript</title>
<body>
<center>
 <script>
 function calcsqrt(form) 
{
var number=form.number.value;
var ans=Math.sqrt(number);
if (number<0) ans="Invalid";
form.sqrt.value=ans;
}
 </script>
<table width="40%" border="8" cellpadding="5" cellspacing="15" bgcolor="lightgreen">
        <tr>
           <td align="center" ><h3> <font face="comic sans ms" color="blue" >Square Root Calculator </font></h3>
                <form action="#" method="get" name="form">
                  <font size="4" face="comic sans ms" color="blue">&radic;</font><input name="number" type="text" class="regfont" size="6"/>
                  <br /><br /><input type="button" onclick="calcsqrt(this.form)" value="Find the Square Root"/>
                  <br /><br /><font face="comic sans ms" color="blue"> 
 The Square Root Value is:<input name="sqrt" type="text" class="regfont" size="20"/><br /><br />
               </form>
           </td>
        </tr>
    </table>
  </center>
  </body>
  </html>



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