colors.distances: needs to USE: math.trig.

diff --git a/extra/colors/distances/distances.factor b/extra/colors/distances/distances.factor
index 8cb71ce10bff42e46de66090c3e870321e913153..0813bf46d21996a71c625d9a50bda9fb27535063 100644 (file)
--- a/extra/colors/distances/distances.factor
+++ b/extra/colors/distances/distances.factor
@@ -1,9 +1,8 @@
 ! Copyright (C) 2014 John Benediktsson
 ! See http://factorcode.org/license.txt for BSD license
 
-USING: accessors colors colors.lab colors.lch colors.lch.private
-combinators kernel locals math math.functions math.libm
-math.order ;
+USING: accessors colors colors.lab colors.lch kernel locals math
+math.functions math.libm math.order math.trig ;
 
 IN: colors.distances