scipy.linalg.circulant¶

scipy.linalg.circulant(c)[source]¶

Construct a circulant matrix.

Parameters

c(N,) array_like: 1-D array, the first column of the matrix.

Returns

A(N, N) ndarray: A circulant matrix whose first column is c.

See also

toeplitz: Toeplitz matrix
hankel: Hankel matrix
solve_circulant: Solve a circulant system.

Notes

New in version 0.8.0.

Examples

>>> from scipy.linalg import circulant
>>> circulant([1, 2, 3])
array([[1, 3, 2],
       [2, 1, 3],
       [3, 2, 1]])

scipy.linalg.block_diag scipy.linalg.companion