Hi everyone,

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Today I'm going to demonstrate how to use php to do all your pythagoras homework with one simple script.

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As I'm sure you know, the formula for pythagoras is:

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c²=a² + b²

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so here's the script.

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<center<h1>Finding the Hypotenuse</h1>
<?php

if($_POST['Submit']) {

$num1 = $_POST['num1'];
$num2 = $_POST['num2'];

$sqrd1 = $num1*$num1; //the squared number
$sqrd2 = $num2*$num2; //the squared number

$sumof = $sqrd1+$sqrd2; //the sum of the squared number

$answer = sqrt($sumof); //the answer

//below is the working for you to copy out.
echo("The answer is " . $ans . ". <br />
Working: <br />
a� = b� + c� <br />
a� = " . $num1 . "� + " . $num2 . "�<br />
a� = " . $sqrd1 . " + " . $sqrd2 . "<br />
a� = " . $sumof . "<br />
a = &#8730;" . $sumof . "<br />
a = $answer <br />"
);
}
?>

//the form to get the input variables
<form method="post" action="index.php" name="Submit">
Number 1<input type="text" name="num1" /><br />
Number 2<input type="text" name="num2" /><br />
<input type="submit" name="Submit" value="Submit"/>
</form>
</center>

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