Editorial and Correction Policy

Effective and last updated: August 20, 2026

Our goal is a result that visitors can use and independently check. These standards apply to every tool and reference page we publish.

Research and scope

Before publishing, we identify the visitor’s specific question and review authoritative references plus strong existing explanations. We cover the information needed to complete the task and avoid unrelated filler.

Calculation checks

Formula tools are checked in three ways when applicable: derive the rule from accepted identities, compare calculated output with direct arithmetic, and test edge cases such as zero, negative values, decimals, and equal inputs. Worked examples show intermediate values so errors can be spotted.

Sources and original writing

We write explanations from scratch. Primary or established references are linked where they help a reader verify a concept. Sources do not pay for inclusion, and we do not copy competitor wording, examples, or structure.

Dates and updates

Substantive pages show their last review date. We review a page when its tool changes, a reader identifies a problem, a cited source changes, or the subject’s rules or conventions need updating. A corrected formula or result is treated as a priority update.

Corrections

If you find a wrong result, ambiguous instruction, broken control, or accessibility problem, send the page address, the input used, the result received, and the expected result through our contact page. We reproduce the issue before changing the page and retest affected examples afterward.

Advertising independence

Future ads will be labeled “Advertisement.” Ads will not imitate tool buttons, navigation, warnings, or download links. Advertisers do not approve our content or receive preferential conclusions.

Use of automated assistance

Automated tools may help organize research, check code, or improve clarity. They do not replace calculation testing or source review. The editorial team remains responsible for what is published.