This page is best for one clear job: quickly checking standard operations on small square matrices. For class exercises, introductory linear algebra, homework verification, and interview review, 2x2 and 3x3 cases already cover many of the matrices people handle by hand. You do not need a large symbolic system just to confirm a result.
The page is not trying to be a general-purpose computer algebra tool. It is a text-input calculator for small matrices, which is why it focuses on fast entry, clear operation choices, and immediate result checking instead of higher-dimensional or advanced matrix workflows.
The current page supports six operations.
The first three require both matrix A and matrix B. The last three require only matrix A.
The current page supports 2x2 and 3x3 square matrices only.
Addition, subtraction, and multiplication need both matrix A and matrix B, while determinant, inverse, and transpose use only matrix A.
Put each row on its own line and separate values with spaces or commas, making sure the row and column count matches the selected size.
If the matrix is singular, meaning its determinant is 0, the current page cannot produce an inverse result.
Add, subtract, multiply, transpose, invert, and evaluate determinants for 2x2 and 3x3 matrices.