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Various functionality for Hadamard matrices
sylvester(k) is.hadamard(m)
Function sylvester() gives the k-th Sylvester matrix
sylvester()
k
matrix
Robin K. S. Hankin
A Hadamard matrix is a square matrix whose entries are either +1 or -1 and whose rows are mutually orthogonal.
“Hadamard matrix.” Wikipedia, The Free Encyclopedia. 19 Jan 2009, 18:21 UTC. 20 Jan 2009
is.hadamard(sylvester(4)) image(sylvester(5))
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