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

Documented research indicate that on Wed, 3 Aug 2005 16:38:08 +0100, Robin Vickery wrote: > On 8/3/05, Rene Brehmer <piv@metalbunny.net> 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...