Not sure if this question belongs in this form but I don't know where else to go. I'm trying to index a matrix and do a < comparison on it. Every time I try something like A[1] it says:
Error, a Vector is not valid lhs to < or <=.
Can anyone help?
EXAMPLE:
A:=<1,2,3>:
b:=A[2]:
if b < 2 then .....