Mod[16^9,257]
16
Mod[5,3]
2
?Mod
Mod[m, n] gives the remainder on division of m by n. The result has
the same sign as n.
m={{1,1,1,1},{1,16,256,241},{1,256,1,256},{1,241,256,16}}
{{1, 1, 1, 1}, {1, 16, 256, 241}, {1, 256, 1, 256},
{1, 241, 256, 16}}
v={13,48,0,0}
{13, 48, 0, 0}
p=m.v
{61, 781, 12301, 11581}
Mod[204*16,257]
180
Converted by Mathematica (July 7, 2003)