Welcome to the Help Centre. Find quick answers to the most common questions about using PhysicsForum.org.
Getting Started
- How do I sign up? Click Join Free in the top right and choose a username, email, and password.
- How do I post a question? Go to the Forum and click Start a Discussion. Choose a category, write a clear title, and use LaTeX for any equations.
- How do I write equations? Use LaTeX delimiters:
$E=mc^2$for inline math and$$ int_0^infty e^{-x},dx = 1 $$for display math. - How do I attach a figure? Drag-and-drop an image into the post composer, or use the file-upload button.
Account & Profile
- Forgot your password? Use the Forgot password? link on the login page.
- Change your display name or bio? Go to Settings.
- Upload a profile picture? Settings → Profile Picture. Pictures over 50 KB are auto-compressed.
- Delete your account? Settings → Account → Delete account. This is irreversible after 30 days.
Reputation & Badges
You earn reputation by posting questions, contributing answers, and receiving upvotes. Reputation unlocks badges shown on your profile and on the leaderboard.
Pro Membership
- What does Pro include? Access to advanced simulations, the AI tutor, ad-free experience, and direct support of the platform.
- How do I cancel? Settings → Pro → Cancel Subscription. No questions asked.
- Refunds? Full refund within 14 days of purchase.
Forum Etiquette
Before posting, please skim our Community Guidelines. In short: be rigorous, be welcoming, cite your sources.
Still Stuck?
Email support@physicsforum.org and a volunteer moderator will get back to you within 1–2 working days.