Hello.  I'm quite new to Maple and I've run into a problem.

My assignment is to create a program that takes input as plaintext, converts it into a matrix X using an alphabet, then encrypts it by multiplying the matrix X by a key matrix M.  Only problem is, I can't even get Maple to recognize a proper if statement.  The if statement is never triggered.

with(Maplets[Elements]):
with(StringTools):
with(LinearAlgebra):

block := 3;

maplet := Maplet(