[GAP Forum] 0*Z(5) in Group(Z(5));

Anvita anvita21 at gmail.com
Sun Dec 14 10:19:35 GMT 2008

Dear Forum,

Why can't GAP check whether Zero of a finite field is in its multiplicative

gap> z:=Z(5);
gap> 0*z in Group(z);
LogFFE: <z> must be a nonzero finite field element at
return elm in F and LogFFE( elm, PrimitiveRoot( F ) ) mod ((Size( F ) - 1) /
Size( G ))
    = 0;
 called from
<function>( <arguments> ) called from read-eval-loop
Entering break read-eval-print loop ...
you can 'quit;' to quit to outer loop, or
you can replace <z> via 'return <z>;' to continue


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