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Posted to commits@hama.apache.org by Apache Wiki <wi...@apache.org> on 2009/12/02 09:00:26 UTC
[Hama Wiki] Trivial Update of "MatrixMultiply" by udanax
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The "MatrixMultiply" page has been changed by udanax.
The comment on this change is: removing old data.
http://wiki.apache.org/hama/MatrixMultiply?action=diff&rev1=12&rev2=13
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- == Abstract definition of matrix multiplication ==
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- 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.
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- In this case, the first row of the second column of AB, aq + bs, represents the total cost of the producing product A.
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- ||<bgcolor="#ececec"> Product\Resource ||<bgcolor="#ececec">{{{ }}} P {{{ }}}||<bgcolor="#ececec">{{{ }}} Q {{{ }}}||
- ||<bgcolor="#ececec">{{{ }}} M {{{ }}}||{{{ }}} a {{{ }}}||{{{ }}} b {{{ }}}||
- ||<bgcolor="#ececec">{{{ }}} N {{{ }}}||{{{ }}} c {{{ }}}||{{{ }}} d {{{ }}}||
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- ||<bgcolor="#ececec"> Resource\Company ||<bgcolor="#ececec">{{{ }}} C1 {{{ }}}||<bgcolor="#ececec">{{{ }}} C2 {{{ }}}||
- ||<bgcolor="#ececec">{{{ }}} P {{{ }}}||{{{ }}} p {{{ }}}||{{{ }}} q {{{ }}}||
- ||<bgcolor="#ececec">{{{ }}} Q {{{ }}}||{{{ }}} r {{{ }}}||{{{ }}} s {{{ }}}||
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* See how to [[MatMult| multiply matrices]] using Map/Reduce