sum of squares

Sums of Two Squares

Posted on June 29, 2019 by Samuel Nunoo

Which whole numbers are expressible as sums of two (integer) squares? Here’s a theorem that completely answers the question, due...

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Products of Sums of Two Squares

Posted on June 27, 2019 by Samuel Nunoo

Here’s a nice theorem due to Fibonacci, in 1202. Theorem. If integers N and M can each be written as the...

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