Math::Trig
Provides subroutines for coverting between degrees, radians, and gradians; converting between different coordinate systems (cartesian, spherical, cylindrical); and great circle formulas.
Also provides versions of the common trigonemetric functions that take or return their arguments in degrees:
sind
cosd
tand
asind
acosd
atand
atan2d
SYNOPSIS
use Math::Trig; # no trigonometric functions exported
use Math::Trig :ALL; # includes the trig functions
INSTALLATION
zef install Math::Trig
BUGS
 This is a work in progress. Caveat emptor.
AUTHORS

Tom Browder tom.browder@gmail.com [from 20200214]

Original author: the late Jonathan Scott Duff <@perlpilot>, RIP
LICENSE
Artistic 2.0. See that license here.
COPYRIGHT
This software is Copyright (c) 2020 by Tom Browder. This software is Copyright (c) 2015 by Jonathan Scott Duff.
ACKNOWLEDGEMENTS
Jonathan Duff's words: "This module is shamelessly based on the Perl 5 module of the same name. Without the authors and maintainers of that module, this module wouldn't exist in this form."