How can you display a null/empty matrix?

4 次查看（过去 30 天）

Smith 2014-3-14

回答： Benjamin Avants 2014-3-14

is this a way? M = [ ] disp(M)

dpb 2014-3-14

Did you try it?

What do you want displayed and in what context?

Benjamin Avants 2014-3-14

Your method won't display anything. You can remove the semicolon from the line that assigns a value to M and it will display like this:

M = []
M =
   []

If you want to test if it is empty use something like the following:

M = [];
if isempty(M)
    disp('M is empty')
end

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