Re: math functions

by "Ryan Fischer" <ryan(at)gigabee.com>

 Date:  Fri, 11 Apr 2003 17:55:19 -0400
 To:  "Keith D Sellars" <Keith(at)webgraffix.com>,
<hwg-languages(at)hwg.org>
 References:  S0026260871
  todo: View Thread, Original
> Hi guys,
>
> I have a form on which I wish to do a simple calculation in php.
>
> Here is what I need to do:
>
> x = [a + .25(f-25)) + d + e] * [1 + g]  all divided by 2  (or
multiplied by
> .5 whichever is easiest coding)
>
> Here is a link so you can see what I'm trying to accomplish.  I've
created a
> mathematical formula (above), that works correctly if I can just
duplicate
> it in the appropriate php code.
>
> https://www.webgraffix.com/postsearchlight/Classifieds2.php
>
> I know it's probably a simple thing, but I keep running into errors
when I
> try to do it.  Any help would be greatly appreciated.

Use parenthesis where needed:

$x = (($a + (.25 * ($f - 25))) + $d + $e) * (1 + $g)) / 2;
    // or * .5; it doesn't matter

HTH!

-Ryan Fischer

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