What belongs on the site
A page needs to answer a real study question or support one of the tools. We do not add an article just to repeat a search phrase or make the site look larger.
Checking a calculator
The result is compared with the formula printed on the page. Checks include an ordinary example, boundary values, missing totals, unusual weights, and results outside the usual range. A rule that varies by school is described as an assumption, not a universal fact.
Reviewing a guide
A guide should give a student something usable: a worked example, a decision to make, or a next step. Vague encouragement, unsupported claims, repeated introductions, and paragraphs added only for length are cut.
Sources and limits
Official grading rules, citation standards, and institutional policies take priority when they apply. General study methods are practical suggestions. They are not promises about grades or substitutes for advice from a teacher or institution.
Writing tools
Drafting and editing software may be used during preparation. It does not replace checking the published page against the actual tool, formula, and stated limitations. The site does not invent contributors, qualifications, or expert approval.
Corrections
When a reported error can be reproduced, the calculation or explanation is corrected. The review date changes after a meaningful content check, not a cosmetic edit. Include the values entered and the result expected when reporting a problem through the Contact page.