Bezier vs IQ Test

This app was originally published in 2009, and has been updated to run on modern iOS devices. --- Create and modify cubic Bézier curves. Up to 4 connected segments can be created and modified by moving the control points. Display the convex hull of the control points to see that a Bézier curve always stays inside it. Use the C1 continuity hint to make the segments C1 continuous where they connect. The resulting curves can be exported as a PNG image, and as an SVG file for further editing in programs like Inkscape and Illustrator. This is the iPhone version of a computer graphics Java applet I wrote back in 1996. Many enhancements are possible, suggestions are welcome at bezierapp@gmail.com

Take a free 30-question IQ test and see your score the moment you finish. No account. No email. No paywall on your score. Ever. Then stay sharp with a daily challenge, streaks and 18 brain games: patterns, spatial, numbers, logic, memory and chess. WHAT YOU GET, FREE • A 30-question test across four reasoning areas: patterns, spatial reasoning, numerical reasoning and logic, with puzzles including cube folding and odd one out. • Your score on the standard scale (mean 100, SD 15), with an honest confidence range rather than a falsely precise number • Where you sit on the bell curve, and a profile of your four cognitive strengths • A plain-language page explaining exactly how the score is calculated IN A HURRY? The 10-question Quick Test gives you a range in about five minutes. A DAILY CHALLENGE THAT KEEPS YOU SHARP Three fresh puzzles every day, the same three for everyone, with full explanations afterwards. Build a streak. Earn streak freezes so one busy day doesn't erase a month. Missed a day? Play it from the calendar — it just won't count toward the streak. PRACTICE AND PLAY • Untimed drills in any category, with difficulty that adapts to you • Brain training games for short sessions — Memory Grid for visual memory, Speed Match for reaction time, Quick Math for mental arithmetic • Challenge a friend: share a link or a five-character code to play the same five puzzles. • Eighteen brain games, including Number Series, Target Number, Cube Fold and Maze Flash, alongside memory, attention, logic and chess puzzles. • Every game keeps a level that rises as you practice HONEST ABOUT WHAT THIS IS This is an entertainment estimate, not a clinical assessment. A real IQ assessment is administered by a psychologist. We say so on your result, not buried in the small print, and the methodology page shows the actual formula. BUILT TO RESPECT YOU • No account and no sign-up — nothing to create, nothing to remember • Your results, answers and streaks are stored on your device. Delete them from Settings whenever you want • Ads are non-personalized: we don't use your activity to target ads, and MindProof doesn't ask to track you • We never ask for your name or email. Usage statistics, tied to a random install ID rather than to you, help us improve the app • English, French and Arabic, with full right-to-left support MINDPROOF PLUS (optional) Unlock the full analysis report, a shareable certificate, unlimited history and no ads. The test and your score are free with or without it. • Lifetime — $7.99, one payment, never renews • Monthly — $0.99 per month • Yearly — $4.99 per year Prices are in USD and may vary by region. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your Apple Account is charged for renewal within 24 hours before the period ends. Manage or cancel your subscription in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://appxlab.io/privacy.html