Matrix Calculator
Choose the matrix size and operation, enter the values of A and B — the result matrix and the dot-product steps for multiplication are shown.
Matrix A (for 2x2, leave the third row/column empty and select size 2)
Matrix B (for 2x2, leave the third row/column empty and select size 2)
How to use
- First select the size (2x2 or 3x3) and the operation.
- Enter values in the Matrix A and B boxes; an empty box is treated as 0.
- The result appears below as a matrix.
Note: In multiplication, the rows of A multiply the columns of B, so A x B and B x A are usually not equal. In 2x2 mode the third row/column is ignored.
Tips
- Empty boxes count as 0, so you can skip entering zeros.
- Matrix multiplication needs matching inner dimensions — columns of A must equal rows of B.
- Use the steps shown to learn the method, not just the answer.