diff --git a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
index 937b6fe597c7..e5fd5893b18f 100644
--- a/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
+++ b/lib/node_modules/@stdlib/lapack/base/iladlr/lib/iladlr.js
@@ -33,6 +33,10 @@ var base = require( './base.js' );
 /**
 * Returns the index of the last non-zero row in a matrix `A`.
 *
+* ## Notes
+*
+* -   If provided an empty matrix or a matrix containing only zeros, the function returns `-1` (i.e., an invalid index).
+*
 * @param {string} order - storage layout
 * @param {PositiveInteger} M - number of rows in `A`
 * @param {PositiveInteger} N - number of columns in `A`