So how does one calculate say 2^9 in the filed F_11( the set of integers of mod11 wrt multiplication)?
Simple , I know but I just cant seem to get it!!!
The 11 is a prime number so that is and that means that...
(1)
... which is the multiplicative inverse of 2 You will easily find... in is 'interesting' the fact that the same result You arrive also for [among many other examples...] ...
Kind regards
$\displaystyle \chi$ $\displaystyle \sigma$