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Matrix Calculator

Determinant, inverse, row reduction, rank, eigenvalues, products and solving A x = B, with exact fractions.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Matrix Calculator works

All maths runs in your browser. Exact fractions and big integers are used where rounding would give wrong answers. Row reduction and rank use exact fractions. Inverse, products and eigenvalues use math.js.

Input: Text. Output: Text.

How to use Matrix Calculator

  1. Type matrix A, one row per line.
  2. Pick an operation, add B if needed.
  3. Read and copy the result.

Tips

  • Exact fractions are used where rounding would give wrong answers.
  • Every tool works offline once the page has loaded.

Matrix Calculator FAQ

Are my files uploaded?
No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?
Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?
Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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