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gibson:teaching:fall-2012:math445:hw1 [2012/09/26 19:07] gibson |
gibson:teaching:fall-2012:math445:hw1 [2012/09/26 20:28] (current) gibson |
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18. computes the product //y = Ax// of an //m x n// matrix //A// and an //n x 1// vector //x//, according the formula | 18. computes the product //y = Ax// of an //m x n// matrix //A// and an //n x 1// vector //x//, according the formula | ||
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<latex> | <latex> | ||
- | y_i = sum_{j=1}^n A_{ij} x_j | + | y_i = \sum_{j=1}^n A_{ij} x_j |
</latex> | </latex> | ||