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<html> <head> <title>SIMPLE CALCULATOR</title> </head> <body> <form method="post"> <table> <caption><h2> SIMPLE CALCULATOR </h2></caption> <tr> <td>First Number:</td> <td><input type="text" name="numl" /></td> </tr> <tr> <td>Second Number:</td><td><input type="text" name="num2"/></td> </tr> <tr> <th colspan="2"><input type="submit" name="submit" value="calculate"></th> </tr> </table> </form> <?php if(isset($_POST['submit'] { $num1 = $_POST['num1']; $num2 = $_POST['num2']; if(is_numeric($num1) and is_numeric($num2)) { echo "Addition:".($num1+$num2)."<br>"; echo "Subtraction:".($num1-$num2)."<br>"; echo "Multiplication:".($num1*$num2)."<br>"; echo "Division: ".($num1/$num2); } else { echo"<script type='text/javascript'> alert(' ENTER VALID NUMBER');</script>"; ?> </body> </html><html> <head> <title>SIMPLE CALCULATOR</title> </head> <body> <form method="post"> <table> <caption><h2> SIMPLE CALCULATOR </h2></caption> <tr> <td>First Number:</td> <td><input type="text" name="numl" /></td> </tr> <tr> <td>Second Number:</td><td><input type="text" name="num2"/></td> </tr> <tr> <th colspan="2"><input type="submit" name="submit" value="calculate"></th> </tr> </table> </form> <?php if(isset($_POST['submit'] { $num1 = $_POST['num1']; $num2 = $_POST['num2']; if(is_numeric($num1) and is_numeric($num2)) { echo "Addition:".($num1+$num2)."<br>"; echo "Subtraction:".($num1-$num2)."<br>"; echo "Multiplication:".($num1*$num2)."<br>"; echo "Division: ".($num1/$num2); } else { echo"<script type='text/javascript'> alert(' ENTER VALID NUMBER');</script>"; ?> </body> </html> } } }))
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