Fast · Free · Online
Matrix calculator
Edit native matrices and calculate matrix arithmetic without flattening rows into plain text.
How to use this calculator
The starter squares a diagonal matrix. Select a cell to change its value; use the matrix controls to change its shape.
Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.
Try it here
Interactive tools require JavaScript. You can read the guide and example without it.
What to know
Matrix products require compatible dimensions; squaring requires a square matrix.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.