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Unformatted text preview: The GaussJordan Method a quick introduction We are interested in solving a system of linear algebraic equations in a sys tematic manner, preferably in a way that can be easily coded for a machine. The best general choice is the GaussJordan procedure which, with certain modifications that must be used to take into account problems arising from specific difficulties in numerical analysis, can be described very easily. To gether with a couple of examples and a couple of exercises that you can do by following the given examples, it is easily mastered. The idea is to start with a system of equations and, by carrying out certain operations on the system, reduce it to an equivalent system whose solution is easily found. It is based on three observations: 1. For a given system, it does not matter in which order the equations are listed; 2. The system remains unchanged if one equation is multiplied on both sides by a nonzero scalar; 3. If we alter replace one equation by the sum of that equation and a scalar multiple of another, then the system is unchanged.scalar multiple of another, then the system is unchanged....
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 Spring '08
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 Linear Algebra, Algebra, Equations

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