lib/danica/cos.rb in danica-2.0.4 vs lib/danica/cos.rb in danica-2.0.5

@@ -4,16 +4,14 @@
 
     def to_f
       Math.cos(variable.to_f)
     end
 
-    private
-
-    def tex_string
+    def to_tex
       "cos(#{variable.to_tex})"
     end
 
-    def gnu_string
+    def to_gnu
       "cos(#{variable.to_gnu})"
     end
   end
 end