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Unformatted text preview: 44 Matrices: Basic OperationsA matrixis a rectangular array of numbers.The anatomy of a matrixcol col col12 3 312531= 232221131211aaaaaarow dimension: 2column dimension: 3dimensionsof matrix: 2 ×3 ("two by three")a square matrixhas the same number of rows as columnsOperations on matricesAddition and subtraction(elementbyelement)312531+ 1321= ______721If dimensions are different, addition and subtraction are undefined44p. 1each elementhas a name:row 1 row 2 Scalar multiplicationMultiply a matrixby a number(elementbyelement):3312531= ________93Matrix multiplication(row and column inner products):31253121131= 1231253121131=...
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This note was uploaded on 12/11/2011 for the course MATH 1324 taught by Professor Staff during the Spring '11 term at Austin Community College.
 Spring '11
 Staff
 Matrices

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