#26954 [NEW]: 0.1 - 01 = -2.77555756156E-017

From: choikh at oms dot cc Operating system: window, linux PHP version: 4.3.4 PHP Bug Type: *General Issues Bug description: 0.1 - 01 = -2.77555756156E-017 Description: ------------ bug sample <? $tot = 0.3; for($i=0;$i < 3; $i++) { echo("==> $tot, "); $tot -= 0.1; echo("==> $tot<br>"); } ?> result ==> 0.3, ==> 0.2 ==> 0.2, ==> 0.1 ==> 0.1, ==> -2.77555756156E-017 why ? -- Edit bug report at http://bugs.php.net/?id=26954&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26954&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26954&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26954&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26954&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26954&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=26954&r=needscript Try newer version: http://bugs.php.net/fix.php?id=26954&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26954&r=support Expected behavior: http://bugs.php.net/fix.php?id=26954&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26954&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26954&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26954&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26954&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26954&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26954&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26954&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26954&r=float