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J.W. Carl, Aeros. Med. Res. Lab. Math. & Anal. Branch Wright-Patterson AFB
A recently proposed matrix factorization for a Hadamard matrix of order twelve is shown to be invalid in that the factored matrix is not Hadamard.
Index Terms:
Hadamard matrix, Hadamard transform, matrix factorization.
Citation:
J.W. Carl, "Comment on "An Algorithm for a Fast Hadamard Matrix Transform of Order Twelve"," IEEE Transactions on Computers, vol. 20, no. 5, pp. 587-588, May 1971, doi:10.1109/T-C.1971.223303
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