(42S) Hill's Encryption System

[Thomas Klemm]

When I took a closer look at the "MMOD" program I wondered why you wouldn't just use the MOD operation.
But it gives an Invalid Type error message.

However division and integer part work on matrices.
So you could use the following instead:

Code:

00 { 16-Byte Prgm }
01▸LBL "MMOD"
02 STO ST Z
03 RCL÷ ST Y
04 IP
05 ×
06 -
07 END

Not sure though if it is useful here since the Z register is overwritten.