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How to report a calculation that looks wrong, a confusing explanation, an accessibility problem or a privacy question.
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What to contact us about
- A calculation that appears wrong for a set of inputs you can reproduce.
- A confusing formula, assumption, label or unit.
- An accessibility problem with a calculator or a page.
- A correction request, a privacy question or a policy concern.
What to include in a useful report
Include the calculator name, the exact inputs you used, the result you received and the result you expected. If you are reporting a factual error, add the source that supports the correction. A report that can be reproduced can be checked and fixed quickly.
How to reach us
Email contact@checkedmath.com with the details above. Reports about a calculation are checked against the formula and its tests before a correction is made.