2×2 matrix multiplication
Multiply two matrices in the chosen order.
How this works
Each output entry is the dot product of a row of A and a column of B.
Example
Using the example inputs, a × b is [19, 22; 43, 50].
- Matrix A, row-major
- 1, 2, 3, 4
- Matrix B, row-major
- 5, 6, 7, 8
- A × B
- [19, 22; 43, 50]
Scope and assumptions
Uses your inputs only; results are rounded for display.
OpenStax mathematics
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