Facts
Citation
URLhttps://en.wikipedia.org/wiki/Hadamard_matrix
Sources
Hadamard Matrix (Wikipedia)
Lead sectionQuote, Lead section
In mathematics, a Hadamard matrix, named after the French mathematician Jacques Hadamard, is a square matrix whose entries are either +1 or -1 and whose rows are mutually orthogonal.
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This source backs 8 claims across the atlas. As facts: 5 well-attested. Plus 3 entities citing it as a general reference with no single fact or relationship attached.
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- Conjectures, 7 claims: 4 well-attested, 3 general references.
- Sources, 1 claims: 1 well-attested.
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