null function
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How does the null function work ? When I row-reduce as a method of finding eigenvectors, I sometimes get a very different answer from what the null function produces.
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Walter Roberson
2011-7-27
Z = null(A) is an orthonormal basis for the null space of A obtained from the singular value decomposition. That is, A*Z has negligible elements, size(Z,2) is the nullity of A, and Z'*Z = I
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2011-7-26
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