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Unformatted text preview: Use elementary row operations to transform the matrix into an equivalent matrix with ones along the diagonal and zeros below the diagonal. Elementary row operations: 1. Interchange any two rows 2. Multiply (or divide) the elements of one row by the same nonzero number. 3. Multiply (or divide) the elements of one row by the same nonzero number and add to its corresponding elements in any other row. Cramers Rule: Find D, D x , D y , and D z (if applicable) x = D x / D y = D y / D z = D z / D If D=0 you must use another method to determine whether there is no solution or an infinite number of solutions. Determinants: The determinant of a 2x2 matrix abcd = ad  bc...
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 Spring '08
 HELENIUS
 Equations

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