1 files changed, 9 insertions, 0 deletions
diff --git a/pfc.1 b/pfc.1
index 869f96b..348cec2 100644
--- a/pfc.1
+++ b/pfc.1
@@ -67,6 +67,15 @@ Cosine function.
 .B tan
 Tangent function.
 .TP
+.B asin
+Inverse sine function.
+.TP
+.B acos
+Inverse cosine function.
+.TP
+.B atan
+Inverse tangent function.
+.TP
 .B deg
 Convert radians to degrees.
 .TP