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johndcook.com
johndcook.com > blog > 08/16/2026 > proportion-of-1s-in-a-hadamard-matrix

Proportion of 1s in a Hadamard matrix

3+ week, 6+ day ago   (181+ words) The first post in the recent series of posts on Hadamard matrices describes a way of constructing new Hadamard matrices from two other Hadamard matrices by taking their Kronecker product. Starting with a Hadamard matrix H0 and a Hadamard matrix G,…...