Gauss-Jordan Elimination
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What it is
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extends row elimination above and below pivots to obtain reduced row-echelon form
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Uses
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identify pivots and free variables, sovle systems, and compute an inverse from when is nonsingular
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Distinguish from
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Gaussian Elimination normally stops at triangular form and uses back substitution
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Caution
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explicitly computing is usually unnecessary when the objective is only to solve .
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