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 KASH3 Reference Manual
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Function

XGCD ( elt-alg^pol x, elt-alg^pol y ) -> elt-alg^pol, elt-alg^pol, elt-alg^pol

Optional Arguments

Resultselt-ord^rat1 <= Results <= 3

Description

Extended GCD: return the GCD g of x and y, together with the cofactors a and b such that g = a*x + b*y.

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