Re: Calculation error - PHP not following math hierarchi ???

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Documented research indicate that on Wed, 3 Aug 2005 16:38:08 +0100, Robin
Vickery wrote:

> On 8/3/05, Rene Brehmer <piv@xxxxxxxxxxxxxx> wrote:
>> Using this function:
>> 
>> function calc_distance($curX,$curY,$newX,$newY) {
>>   // calculate distance to new location
>>   $distX = abs($curX - $newX);
>>   $distY = abs($curY - $newY);
>> 
>>   if ($distX <= 150 && $distY <= 150) {
>>     $dist = sqrt($distX^2 + $distY^2);
> 
> I don't think you really want to do a bitwise xor there.
> 
> http://www.php.net/manual/en/language.operators.bitwise.php
> 
> Try pow() instead
> 
> http://www.php.net/manual/en/function.pow.php

Thanks. I didn't know it was a bitwise operator ... Was trying to find the
right way to go about it in the manual, but when you don't know what it's
called in English, it's a bit of a problem ... and since the Danish version
of the manual isn't up to date, I don't really use it...

But thanks, looks like what I want ... thank you...


Rene

-- 
Rene Brehmer
aka Metalbunny

We have nothing to fear from free speech and free information on the
Internet, but pop-up advertising! 

http://metalbunny.net/
My little mess of things...

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