Bug #74451 [NEW]: Sine values exceed 1

From: m_sun at mail dot ru Operating system: Alpine Linux PHP version: 5.6.30 Package: Math related Bug Type: Bug Bug description:Sine values exceed 1 Description: ------------ Absolute values of sine and cosine functions may somehow exceed 1 when argument is more then 2 * pi Test script: --------------- $sin = sin(60.0); // $sin contains 19880855899899 now $sin = sin (fmod (60.0, M_PI * 2)); // Gives correct result now Actual result: -------------- Radian Degrees Sin Cos 60 3,437.75 19880855899899 -84637265064481 60.1 3,443.48 20318846900770 -86648047391510 60.2 3,449.21 20765725188326 -88703090857283 -- Edit bug report at https://bugs.php.net/bug.php?id=74451&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74451&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74451&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74451&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74451&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74451&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74451&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74451&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74451&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74451&r=support Expected behavior: https://bugs.php.net/fix.php?id=74451&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74451&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74451&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74451&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74451&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74451&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74451&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74451&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74451&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74451&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74451&r=mysqlcfg