Function toeplitz 

pub fn toeplitz<T>(
    first_row: ArrayView<'_, T, Ix1>,
    first_col: ArrayView<'_, T, Ix1>,
) -> Result<Array<T, Ix2>, &'static str>
where
    T: Clone + PartialEq + Zero,

Create a Toeplitz matrix from first row and first column

Arguments

• first_row - First row of the Toeplitz matrix
• first_col - First column of the Toeplitz matrix (first element must match first row’s first element)

Returns

A Toeplitz matrix with the specified first row and column

Examples

use ndarray::array;
use scirs2_core::ndarray_ext::matrix::toeplitz;

let first_row = array![1, 2, 3];
let first_col = array![1, 4, 5];
let result = toeplitz(first_row.view(), first_col.view()).unwrap();
assert_eq!(result.shape(), &[3, 3]);
assert_eq!(result, array![
    [1, 2, 3],
    [4, 1, 2],
    [5, 4, 1]
]);