spyrit.misc.walsh_hadamard.walsh2_S_matrix

spyrit.misc.walsh_hadamard.walsh2_S_matrix(n)

Return Walsh S-matrix in “2d”

Args:

n (int): Order of the matrix. n must be a power of two.

Returns:

S (np.ndarray): (n*n-1)-by-(n*n-1) matrix

Example:

>>> from spyrit.misc.walsh_hadamard import walsh2_S_matrix
>>> S = walsh2_S_matrix(4)
>>> print(S.shape)
(15, 15)