`ptogf2n'
---------

ptogf2n(POLY)
     :: $B0lJQ?tB?9`<0$r(B GF(2^n) $B$N85$KJQ49(B

RETURN
     GF(2^n) $B$N85(B

POLY
     $B0lJQ?tB?9`<0(B

   * POLY $B$NI=$9(B GF(2^n) $B$N85$r@8@.$9$k(B. $B78?t$O(B, 2 $B$G3d$C$?M>$j$K(B
     $BJQ49$5$l$k(B.  POLY $B$NJQ?t$K(B `@' $B$rBeF~$7$?7k2L$HEy$7$$(B.

     [1] setmod_ff(x^30+x+1);
     x^30+x+1
     [2] ptogf2n(x^100);
     (@^100)

$B;2>H(B
     *Note `gf2ntop': gf2ntop

