Find the dimension of the column space, null space, row space, and left null space for any matrix.
Example
input A=[1 2 3; 4 6 7; 2 4 6; 1 2 3]
output will be row vector like [1 2 2 2]
output = [columnspace nullspace rowspace leftnullspace]
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http://en.wikipedia.org/wiki/Fundamental_theorem_of_linear_algebra
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