1 files changed, 4 insertions, 0 deletions
diff --git a/doc/func.1 b/doc/func.1
index a5df513..0ae5bc2 100644
--- a/doc/func.1
+++ b/doc/func.1
@@ -35,3 +35,7 @@ Convert degrees to radians.
 .TP
 .B fac
 Factorial (!) function.
+.
+.TP
+.B ch
+Combination function. n choose k with integers n and k such that n >= k >= 0.