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 KASH3 Reference Manual
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Function

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

Optional Arguments

Resultselt-ord^rat1 <= Results <= 2

Description

True iff the rational integer x is the square of a rational; if true, the square root of x is also returned.

Examples

IsSquare(4/1); IsSquare(One(Q));
IsSquare(-One(Q));
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