Contact & corrections

Help us check the math

CalcLogicPro is maintained by Richard Bell. Use this form to report a calculator problem, question an assumption, or suggest a clearer explanation.

Report a calculator problem

A link copied from a result page usually contains the inputs needed to reproduce the calculation.

How corrections are handled

  1. Reproduce the result from the reported inputs.
  2. Compare the calculation with the displayed formula, cited product data, or applicable reference.
  3. Correct the implementation and explanatory text together.
  4. Add or update an automated test when the issue concerns calculation behavior.

General formulas, conversions, rounding rules, and limitations are documented on the methodology page. Reports are used to maintain CalcLogicPro and are not published on this page.