From: jvano at read dot sk Operating system: Irrelevant (All) PHP version: 5.2.0 PHP Bug Type: *General Issues Bug description: Specific BUG in DOUBLE mathematics!!!
Description: ------------ Problem is in all versions of PHP. Problem is in basic mathematic operation (+/-) wiht double. When I use simple values and make some basic operation, for example (5.7 - (1.4 + 4.3)). This problem is in another combinations but not in all. Reproduce code: --------------- <?php echo (5.7 - (1.4 + 4.3)); ?> Expected result: ---------------- In all cases is expected 0(zero). But result is always +/- 8.881784197E-016. Actual result: -------------- I think that problem is in representation of double value. -- Edit bug report at http://bugs.php.net/?id=39425&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39425&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39425&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39425&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=39425&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=39425&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=39425&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=39425&r=needscript Try newer version: http://bugs.php.net/fix.php?id=39425&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=39425&r=support Expected behavior: http://bugs.php.net/fix.php?id=39425&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=39425&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=39425&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=39425&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39425&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=39425&r=dst IIS Stability: http://bugs.php.net/fix.php?id=39425&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=39425&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=39425&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=39425&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=39425&r=mysqlcfg
