hadamard(n, dtype=<class 'int'>)
Constructs an n-by-n Hadamard matrix, using Sylvester's construction. n must be a power of 2.
The order of the matrix. n must be a power of 2.
The data type of the array to be constructed.
The Hadamard matrix.
Construct an Hadamard matrix.
>>> from scipy.linalg import hadamard
... hadamard(2, dtype=complex) array([[ 1.+0.j, 1.+0.j], [ 1.+0.j, -1.-0.j]])
>>> hadamard(4) array([[ 1, 1, 1, 1], [ 1, -1, 1, -1], [ 1, 1, -1, -1], [ 1, -1, -1, 1]])See :
The following pages refer to to this document either explicitly or contain code examples using this.
scipy.linalg._special_matrices.hadamard
scipy.linalg._decomp_svd.subspace_angles
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