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== Abstract definition of matrix multiplication ==

In the following tables, matrix [[http://wiki.apache.org/hama-data/attachments/MatrixMultiply/attachments/matrix_a.gif]] represents the quantities of the materials P and Q to produce products M and N. Matrix [[http://wiki.apache.org/hama-data/attachments/MatrixMultiply/attachments/matrix_b.gif]] represents the prices of the materials P and Q of the suppliers C1 and C2.

In this case, the first row of the second column of AB, aq + bs, represents the total cost of the producing product A.

||<bgcolor="#ececec"> Product\Resource ||<bgcolor="#ececec">{{{ }}} P {{{ }}}||<bgcolor="#ececec">{{{ }}} Q {{{ }}}||
||<bgcolor="#ececec">{{{ }}} M {{{ }}}||{{{ }}} a {{{ }}}||{{{ }}} b {{{ }}}||
||<bgcolor="#ececec">{{{ }}} N {{{ }}}||{{{ }}} c {{{ }}}||{{{ }}} d {{{ }}}||

||<bgcolor="#ececec"> Resource\Company ||<bgcolor="#ececec">{{{ }}} C1 {{{ }}}||<bgcolor="#ececec">{{{ }}} C2 {{{ }}}||
||<bgcolor="#ececec">{{{ }}} P {{{ }}}||{{{ }}} p {{{ }}}||{{{ }}} q {{{ }}}||
||<bgcolor="#ececec">{{{ }}} Q {{{ }}}||{{{ }}} r {{{ }}}||{{{ }}} s {{{ }}}||

MatrixMultiply (last edited 2009-12-02 08:00:25 by Edward J. Yoon)