note 41037 added to function.pi

Pi is often usefully in con/sin/tan functions.. There are also other Pi related constants. These are most of them: <? M_PI = 3.14159265358979323846 // pi // The following were added in PHP 4.0.0 M_PI_2 = 1.57079632679489661923 // pi/2 M_PI_4 = 0.78539816339744830962 // pi/4 M_1_PI = 0.31830988618379067154 // 1/pi M_2_PI = 0.63661977236758134308 // 2/pi M_SQRTPI = 1.77245385090551602729 // sqrt(pi) (Only in PHP 4.0.2+) M_2_SQRTPI = 1.12837916709551257390 // 2/sqrt(pi) ?> for more Mathematical formula/constants see: http://uk.php.net/math . ---- Manual Page -- http://www.php.net/manual/en/function.pi.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+41037 Delete -- http://master.php.net/manage/user-notes.php?action=delete+41037&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+41037&report=yes Search -- http://master.php.net/manage/user-notes.php