Editorial policy
Rules that keep CheatDX useful, accurate, and honest.
Accuracy
Formulas and definitions are checked against official specifications, standard textbooks, or at least two independent references. When sources disagree, the sheet states the difference.
Sources
Each sheet lists the references used. We do not copy textbook pages, exam-board formula booklets, or past papers. Tables and examples are rewritten in our own words.
Updates
Every sheet shows a last-updated date. Exam-board sheets are reviewed before each exam season when boards publish new advance information.
Corrections
If you find an error, email hello@cheatdx.com with the sheet URL and the correction. Verified corrections are published with an updated date.
Academic integrity
CheatDX does not publish exam questions, leaked papers, answers to live assessments, or instructions for hiding notes. The site exists to help students understand material before an exam.
Independence and ads
CheatDX may display ads through Google AdSense. Ads do not influence which topics are covered or how a sheet is written. Sponsored content, if ever added, will be labeled clearly.
AI assistance
Drafting tools may assist with editing, but published sheets are reviewed by a human before release. Numerical and formula content is checked manually.