Pari's lift function "lifts" a modular residue back into the integers. 
? lift( 1 / Mod(3,17) )
%1 = 6

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Presumably it is available from the Math::Pari bindings somehow (I only know pari, not the Perl bindings).

blokhead

In reply to Re: Using modular numbers with Math::Pari by blokhead
in thread Using modular numbers with Math::Pari by hv

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