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I wanted to ask if there is a Mathematica program for PLUR decomposition of a symbolic matrix M, such that M = P*L*U*R, using FULL (row and column) pivoting, and where R = reduced row echelon form of M.

The entries of the matrix M are rational numbers, floating point numbers and symbolic expressions.

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I am not aware of such functionality. Also not clear why one might want it in the symbolic case. –  Daniel Lichtblau Apr 15 at 15:08

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