Editorial Policy
Explanations tied to the tool
Calculator content describes the actual input method and output shown on the page. Worked examples use explicit numbers that can be checked in the tool. Explanations distinguish mathematical results from grading policies, financial accounting conventions, and other external decisions.
Numerical and factual care
Formula changes should be accompanied by relevant test updates. Examples should be recalculated when their inputs or underlying methods change. The site does not manufacture professional reviewers, research findings, institutional endorsements, live prices, or testimonials.
Corrections
If you find an issue, record the calculator name, input values, selected method, expected answer, and observed answer. Avoid including private records or identifying details. The contact page can prepare a report for you to retain; message delivery is not configured yet.