How to convert a column back into matrix?

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Explorer am 23 Mär. 2016
Bearbeitet: Stephen23 am 23 Mär. 2016
A matrix can be converted in column using matrix(:) but how to convert it back into matrix of same order?

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Guillaume am 23 Mär. 2016
If you don't know what the original size of the matrix was, then you of course can't since matlab does not keep the information.
If you do, use reshape:
A = randi([1 20], 10, 20, 30);
B = A(:);
AA = reshape(B, 10, 20, 30);
isequal(A, AA) %will return true
Note that A(:) is equivalent to
reshape(A, [], 1)

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