Adding tan.

cgore · cgore · commit 2290fdb3c878 · 2015-12-03T11:33:28.000-06:00
diff --git a/pixie/math.pxi b/pixie/math.pxi
@@ -12,6 +12,7 @@
   (i/defcfn cosh)
   (i/defcfn sin)
   (i/defcfn sinh)
+  (i/defcfn tan)
   (i/defcfn tanh)
   (i/defcfn exp)
   (i/defcfn ldexp)
