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perlfunc:atan2by gods (Initiate) |
on Aug 24, 1999 at 22:43 UTC ( [id://333]=perlfunc: print w/replies, xml ) | Need Help?? |
atan2See the current Perl documentation for atan2. Here is our local, out-dated (pre-5.6) version: atan2 - arctangent of Y/X
atan2 Y,X
Returns the arctangent of Y/X in the range -PI to PI.
For the tangent operation, you may use the
sub tan { sin($_[0]) / cos($_[0]) } |
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