From: Dominic Hargreaves <dom@earth.li>
Date: Sat, 30 Apr 2016 22:56:56 +0100
Subject: Math::Trig: document angle units

Bug: https://rt.cpan.org/Ticket/Display.html?id=114106
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731505
---
 dist/Math-Complex/lib/Math/Trig.pm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dist/Math-Complex/lib/Math/Trig.pm b/dist/Math-Complex/lib/Math/Trig.pm
index 3d504fd..fa082c0 100644
--- a/dist/Math-Complex/lib/Math/Trig.pm
+++ b/dist/Math-Complex/lib/Math/Trig.pm
@@ -271,6 +271,11 @@ core Perl which defines only the C<sin()> and C<cos()>.  The constant
 B<pi> is also defined as are a few convenience functions for angle
 conversions, and I<great circle formulas> for spherical movement.
 
+=head1 ANGLES
+
+All angles are defined in radians, except where otherwise specified
+(for example in the deg/rad conversion functions).
+
 =head1 TRIGONOMETRIC FUNCTIONS
 
 The tangent