Function: idealinv
Section: number_fields
C-Name: idealinv
Prototype: GG
Help: idealinv(nf,x,{flag=0}): inverse of the ideal x in the number field
 nf. If flag is omitted or set to 0, use the different. If flag is 1 do not
 use it
Description: 
 (gen, gen):gen	idealinv($1, $2)

