Contact

Use the form below to reach the TableSigma team — to report a wrong value, suggest a new table, ask about classroom use, or anything else. We read every message and reply by email.

Response time

We aim to reply within a few days — we do not promise a specific turnaround time, since reports are checked against the relevant distribution function before a table is corrected.

Corrections and error reports

If you spot a value that looks wrong, choose “Report an error in a table” in the form above, or use the “Report an error in this table” form directly on the table page in question (fastest, since it already knows which page and value you mean). Every reported value is re-verified against the distribution formula, and the page’s updated date is revised when a correction ships.

Using TableSigma in a classroom

Teachers printing a table or PDF for their own class do not need special permission — see the Terms of Use page for what non-commercial classroom use covers. If you want to request a new table (F-distribution, binomial, Poisson, etc.), choose “Suggest a new table” in the form.

Takedown or copyright requests

If you believe content on this site infringes your rights, use the form above with the topic “Other” and include the URL in question and a description of the issue.

Who you are contacting

TableSigma is operated as an independent reference site; see the About page for more. This form is read by the team that maintains the site.

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