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#euler's_four-square_identity

Euler's four-square identity

Product of sums of four squares expressed as a sum of four squares

In mathematics, Euler's four-square identity says that the product of two numbers, each of which is a sum of four squares, is itself a sum of four squares.

Mon 18th

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Euler's four-square identity List of things named after Leonhard Euler Brahmagupta–Fibonacci identity List of mathematical identities Lagrange's four-square theorem Four square (disambiguation) Square (algebra) Square number Euler–Rodrigues formula Degen's eight-square identity
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