Python循环矩阵-scipy.linalg.circulant

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scipy.linalg.circulant

scipy.linalg.circulant©[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.

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

See https://docs.scipy.org/doc/scipy/reference/generated/scipy.linalg.circulant.html

https://math.stackexchange.com/questions/4610870/generating-doubly-block-circulant-matrices-which-are-also-symmetric-positive-def

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