linear systems math 214 spring 2006 fowler 307 mwf 2 30pm 3 25pm c 2006 ron buckmire http faculty oxy edu ron math 214 06 class 12 friday february 17 ...
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...Linear systems math spring fowler mwf pm c ron buckmire http faculty oxy edu class friday february summary theinverse matrix currentreading poole wewill introduce a very important concept the inverse homework assignment hw section extra credit consider abandm d b cd ad bc ca write down product of m and that is maand am wecall which when multiplied by produces identity it denoted has property aa i factor known as determinant we will learn more about how to compute determinants their signicance later however true if equals zero then not invertible e det doesn t exist also doesnotexist theorem an its unique n system equations given x solution bforanybinr computing inverses gauss jordan elimination in order actually generate or nd use process called this identical gaussian already know except extended y z augmented with right hand side do on until have produced left properties ab abc for positive integers at scalars exercise show ba determining singularity coecient singular no innite numbe...