From: cidahf at live dot co dot uk Operating system: Ubuntu 12.04 PHP version: 5.4.3 Package: Math related Bug Type: Bug Bug description:Inaccurate division
Description: ------------ When I divide 25.4 by 10000 I get an awkward 0.002539999999999999723276911112179732299409806728363037109375 instead of the desired 0.00254. I tried the same with Ruby 1.8.7 and it returned the correct result. This issue is problematic for unit conversion. I also got this in 5.3 but I upgraded before making a report. Test script: --------------- echo 25.4 / 10000; Expected result: ---------------- 0.00254 Actual result: -------------- 0.002539999999999999723276911112179732299409806728363037109375 -- Edit bug report at https://bugs.php.net/bug.php?id=62170&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62170&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62170&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62170&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=62170&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62170&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=62170&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=62170&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=62170&r=needscript Try newer version: https://bugs.php.net/fix.php?id=62170&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=62170&r=support Expected behavior: https://bugs.php.net/fix.php?id=62170&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=62170&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=62170&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=62170&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62170&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=62170&r=dst IIS Stability: https://bugs.php.net/fix.php?id=62170&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=62170&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=62170&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=62170&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=62170&r=mysqlcfg