# Matrix Calculator

> Perform addition, subtraction, and multiplication on 2x2 and 3x3 matrices.

Page: https://askcalculators.com/calculator/matrix-calculator/
Definition: https://askcalculators.com/calculator/matrix-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/matrix-calculator/schema.json
Version: 7.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/matrix-calculator/?size=2&operation=%2B

## Inputs
- val: Val; type=number; optional
- size: Matrix size; type=select; optional; default=2
- operation: Operation; type=select; optional; default=+

## Outputs
- result: Result; format=text; primary

## Formula
Matrix addition, subtraction, multiplication, or determinant follows the selected linear-algebra operation.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.