Math::Trig
use Math::Trig; $x = tan(0.9); $y = acos(3.7); $z = asin(2.4); $halfpi = pi/2; $rad = deg2rad(120);
Perl itself defines only three trigonometric functions:
sin
, cos
, and
atan2
. The Math::Trig
module
overrides these with fancier versions and supplies all the rest of the
trig functions, including tan
,
csc
, cosec
,
sec
, cot
,
cotan
, asin
,
acos
, atan
,
sinh
, cosh
,
tanh
, and many others. Additionally, the constant
pi
is defined, as are conversion functions like
deg2rad
and grad2rad
. Support is
provided for Cartesian, spherical, and cylindrical coordinates
systems. This module makes implicit use of
Math::Complex
as needed (and vice versa) for
computations requiring imaginary numbers.
Get Programming Perl, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.