diff --git a/src/base/matrix.rs b/src/base/matrix.rs index b1e0653c..1fb93fea 100644 --- a/src/base/matrix.rs +++ b/src/base/matrix.rs @@ -279,6 +279,16 @@ impl> Matrix { /// Computes the row and column coordinates of the i-th element of this matrix seen as a /// vector. + /// + /// # Example + /// ``` + /// # use nalgebra::Matrix2; + /// let m = Matrix2::new(1, 2, + /// 3, 4); + /// let i = m.vector_to_matrix_index(3); + /// assert_eq!(i, (1, 1)); + /// assert_eq!(m[i], m[3]); + /// ``` #[inline] pub fn vector_to_matrix_index(&self, i: usize) -> (usize, usize) { let (nrows, ncols) = self.shape();