#44550 [NEW]: cos() function

From: akimkin dot denis at gmail dot com Operating system: Gentoo GNU/Linux PHP version: 5.2.6RC2 PHP Bug Type: Unknown/Other Function Bug description: cos() function Description: ------------ It seems, that there's some problems with cos() function - it returns some strange values, when must return zero. Reproduce code: --------------- <? echo cos(M_PI_2); // or cos(deg2rad(90)); ?> Expected result: ---------------- 0 Actual result: -------------- 6.12303176911E-17 -- Edit bug report at http://bugs.php.net/?id=44550&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44550&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44550&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44550&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44550&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44550&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44550&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44550&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44550&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44550&r=support Expected behavior: http://bugs.php.net/fix.php?id=44550&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44550&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44550&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44550&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44550&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44550&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44550&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44550&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44550&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44550&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44550&r=mysqlcfg