This section contains the detail about Calculating Square Root using jQuery Ajax & PHP

## Calculating Square Root using jQuery Ajax & PHP

In this section, you will learn how to calculate Square root of the given number using jQuery & PHP.

JQuery Ajax is used to submit data from user input form to PHP script and also for displaying result on the same page.

### Example :

FindSquareRoot.php

```<html>
<title>Simple jQuery and PHP Square Root example</title>
<script src="js/jquery-1.4.2.js" type="text/javascript"></script>
<script type="text/javascript">
\$('#form').submit(function(){
var number = \$('#number').val();
\$.ajax({type:"post",url:"calculate.php",data:"number="
+number,success:function(msg){\$('#result').hide();
\$("#result").html("<h3>" + msg + "</h3>").fadeIn("slow"); } });
return false;
});
});
</script>
<body>
<form id="form" action="calculate.php" method="post">
Enter number:
<input id="number" type="text" name="number" />
<input id="submit" type="submit" value="Calculate Square Root"
name="submit"/>
</form>
<p id="result"></p>
</body>
</html>
```

calculate.php

```<?php
if(\$_POST['number']==null){
}else {
if (!is_numeric(\$_POST['number'])) {
}else{
echo "Square Root of " .\$_POST['number'] ." is ".sqrt(\$_POST['number']);
}
}
?>
```

### Output :

It will show you square root of the provided number :

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