KASH3 Ref - Root

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| ### Function Root ( elt-res^pad x, elt-ord^rat n ) -> elt-res^pad ### Description An n-th root of x, if it exists (error otherwise). ### Examples x_Z5 := pAdicRing(5,30); x_R5 := Quotient(x_Z5, 5^3); x_r := Element(x_R5, 91); Root(x_r, 3);
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