Practice question · Put in order
Order the steps to compute entry of .
- Take row 2 of
- Sum the products
- Take column 3 of
- Write the total in position
- Multiply matching components pairwise
Hints
- The row index comes from the left factor.
- Dot product = multiply then accumulate.
Show the answer
- Take row 2 of
- Take column 3 of
- Multiply matching components pairwise
- Sum the products
- Write the total in position
Why
Row from the left, column from the right, multiply–accumulate, place. Every entry of every matrix product ever computed follows these five steps.
Practise Matrix Product
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