note 35591 added to language.types.float

To complete the thread about testing two floating point numbers for equality, here's the way it works for *every* programming language: <?php // two fp numbers should be considered equal if their absolute // difference does not exceed a certain value epsilon: $epsilon = 0.0001; // this defines the precision of your comparision // check their absolute difference if (abs($one_float - $another_float) < $epsilon) // what to be done in case the numbers are equal goes here ?> ---- Manual Page -- http://www.php.net/manual/en/language.types.float.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+35591 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+35591&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+35591&report=yes