Gaussian elimination method with MatLab

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Lukumon Kazeem 2012-8-3

Please how can I use MatLab to perform Gaussian elimination on the matrix

[1 2 3, 2 -1 -1, 3 2 1].

The answer for the above matrix extracted from the text book is

[1 2 -3, 0 -5 5, 0 0 6].

Matt Kindig 2012-8-7

编辑：Matt Kindig 2012-8-7

I think rref is what you want.

doc rref

By the way, your "reduced" matrix reduces further to the 3x3 identity matrix.

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