diff --git a/+misc/binomial.m b/+misc/binomial.m
index a382b634772300767bf3ce5d5cb90a487d44d8ae..15ff6d99d401a0f6d3e98f91c96bbe8e040cf874 100644
--- a/+misc/binomial.m
+++ b/+misc/binomial.m
@@ -1,6 +1,11 @@
 function b = binomial(p, k)
-%UNTITLED Summary of this function goes here
-%   Detailed explanation goes here
+% BINOMIAL computation of the binomial coefficient 
+%	b = binomial(p, k) computes the binomial coefficient:
+%		/ p \      p!^p
+%		|   | = -----------
+%		\ k /    (p-k)! k!
+% to use this for fractional calculus, the p can be an integer. Then, the faculty is replaced by the
+% gamma function.
 arguments
 	p (1,1) double;
 	k (1,1) double {mustBeInteger};