Source: wikibot/euler-s-four-square-identity
= Euler's four-square identity
{wiki=Euler's_four-square_identity}
Euler's four-square identity states that the product of two sums of four squares is itself expressible as a sum of four squares.
= Euler's four-square identity
{wiki=Euler's_four-square_identity}
Euler's four-square identity states that the product of two sums of four squares is itself expressible as a sum of four squares.