Sum of N negative numbers

//Tanzila Islam

//Southeast University

//mail : tanzilamohita@gmail.com


<?PHP

  if($_SERVER['REQUEST_METHOD']=="POST")

  {

   $series = $_POST['num'];

 

 for($i=1;$i<=$series;$i++)

{

printf("- %d",$i);


$total+=$i;

}

printf("= - %d ",$total);


}


 

 

?>


<form method="post" action="">

Give some input  : <input type="text" name="num" /><br />

<input type="submit" value="Submit" />

</form>