A good answer might be:
- c11 = 1×4 + -2×-1 = 2
- c32 = -1×1 + 4×2 = 7
You are surely eager to perform a matrix-matrix product! In the following diagram, mentally calculate the dot product that belongs in each cell. Then move the mouse over it to see the correct value.
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In order for the above to work you must use a recent web browser (such as Netscape Navigator 4.0) and have JavaScript enabled. If it doesn't work, work out the answer with paper and pencil.
Compute the matrix-matrix product.