Find does not work according to the condition?

I have

a=[1 2 3];
b=[4 5 6 7];
c=[7 2]

How do I make them above different size matrix a single array like as follows:

s=[1 2 3 0;
   4 5 6 7;
   7 2 0 0];

[jonas]

what's the problem with find?

Answer 1

[Jan]

a = [1 2 3];
b = [4 5 6 7];
c = [7 2];
Data = {a, b, c};   % Better use a cell array instead of a bunch of variables

Len = cellfun('prodofzize', Data);
M   = zeros(numel(Data), max(Len));
for k = 1:numel(Data)
  M(k, 1:Len(k)) = Data{k};
end

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Answer 2

[Image Analyst]

This works:

a=[1 2 3];
b=[4 5 6 7];
c=[7 2]
maxLength = max([length(a), length(b), length(c)])
output = zeros(3, maxLength);
output(1, 1:length(a)) = a;
output(2, 1:length(b)) = b;
output(3, 1:length(c)) = c

find() was not needed.