KASH3 Ref - IsSquare

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KASH³ Reference Manual

IsSquare ( elt-res^rat x ) -> elt-alg^boo, elt-res^rat

Results	elt-ord^rat		1 <= Results <= 2
Factorization	seq()

True iff the element x of Z/mZ is a quadratic residue mod m; if true, a square root of x is also returned.

Built: Mon Nov 14 21:12:39 UTC 2005 on mack