Add OUTPUT to tridiagonal docstring.

diff --git a/tridiagonal.m b/tridiagonal.m
index ba99b6375c1bfa0bf9aa7dbce49c262ec30ba67f..47cef2b5aab0568974ab3a7a735e23a3534c427c 100644 (file)
--- a/tridiagonal.m
+++ b/tridiagonal.m
@@ -13,6 +13,10 @@ function A = tridiagonal(integerN, x, y, z)
   %
   %   - ``z`` -- The value on the superdiagonal.
   %
+  % OUTPUT:
+  %
+  %   - ``A`` -- an integerN-by-integerN square matrix.
+  %
   if (integerN < 0)
     A = NA;
     return;