Editorial policy

Originality

All explanations, examples, FAQs, and page copy are written originally for this site. Formulas and standard mathematical facts are universal knowledge; everything built around them, wording, examples, structure, is our own. We do not scrape, spin, or paraphrase other sites’ content.

Accuracy

Worked examples on calculator pages are computed with the same engine that powers the tool, then hand-checked. If a formula or example is ever found wrong, it is fixed and the fix is noted on this page’s changelog below.

Corrections

Report errors via the contact page with the page URL and the exact issue. Verified corrections are typically published within 7 days. Substantive corrections are logged here:

No corrections logged yet, the site launched with this policy in place.

Scope honesty

Pages state what their tool does and does not do. We do not claim capabilities a tool lacks, and roadmaps are labeled as plans, not promises.