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Matrix determinant
Calculate a square matrix determinant with partial-pivot elimination.
Enter a square matrix as a JSON array of rows. The tool swaps rows to choose larger pivots, eliminates lower entries and combines the pivot values with the row-swap sign to obtain the determinant.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Square matrix (JSON rows): [[1,2],[3,4]]
Example result
-2
Limitations and details
The matrix must be square and at most 20 × 20; near-singular matrices can be sensitive to floating-point rounding.
Inputs and options
- Square matrix (JSON rows)
- Text
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.