Small Hadamard Matrices
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A Hadamard matrix is a square matrix with all entries equal to or
, with its rows mutually orthogonal. Half of the corresponding pairs of entries in any two rows have the same sign and half have the opposite sign.
Contributed by: Ed Pegg Jr (August 2022)
Open content licensed under CC BY-NC-SA
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Reference
[1] N. J. A. Sloane. "A Library of Hadamard Matrices." (Nov 11, 2021) neilsloane.com/hadamard.
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