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Flip matrices up-down



B = flipud(A) returns A with rows flipped in the up-down direction, that is, about a horizontal axis.

If A is a column vector, then flipud(A) returns a vector of the same length with the order of its elements reversed. If A is a row vector, then flipud(A) simply returns A.


If A is the 3-by-2 matrix,

then flipud(A) produces

If A is a column vector,

then flipud(A) produces


The array being operated on cannot have more than two dimensions. This limitation exists because the axis upon which to flip a multidimensional array would be undefined.

See Also

flipdim, fliplr, rot90

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