znstar and all

[Olivier Ramare <ramare@gat.univ-lille1.fr>]

Hello,

  Help required : working with the multiplicative group of
Z/nZ, I discovered  znstar, znprimroot and znorder. But once we
have a primitive root, how to get the logarithm with respect to the
given primitive root ? It is surely somewhere...
  Many thanks in advance and sorry for the disturbance.
  Amities,
           Olivier