expanding an array

I need to compare 2 arrays A and B which are unequal in length.So,I need to find the shorter of the 2 arrays and add additional zeros in it so that the arrays are of the same length and so they can be compared by 'if' statement

Answer 1

[the cyclist]

Another way, that truncates rather than appends zeros. (I know you specified otherwise, but thought this might be useful as well.)

A = 1:10
B = 1:8

shorterLength = min(length(A),length(B));

compare = A(1:shorterLength)==B(1:shorterLength)

Answer 2

[Walter Roberson]

What is the point? The two arrays cannot be the same if they have a different number of elements.

tA = A;
tB = B;
LD = length(A) - length(B);
if LD < 0
  tA(end-LD) = 0;  %extends matrix!
elseif LD > 0
  tB(end+LD) = 0;  %extends matrix!
end

if isequal(tA, TB)
  ...
end