The Fourth Dimension vs Graph³

The Fourth Dimension is a 30-page interactive book that explains a single mathematical idea in language that anyone can understand. Instead of static images or canned videos, this app employs a unique 3D touch interface that lets you literally grasp the concept of the fourth dimension with your own hands. “Not only can you blow your own mind over and over again, you can also enjoy watching your friends’ minds being blown in front of you.” — Cult of Mac “One of the coolest apps I've ever used... The Fourth Dimension is to boring learning apps what Carl Sagan's Cosmos was to staid science documentaries.” — BuzzFeed “The app is very cool, and it's unlike pretty much anything we've seen in the App Store.” — The Verge “This is one of my most favorite iOS apps ever.” — George Musser, contributing editor for Scientific American and author of The Complete Idiot's Guide to String Theory (App Store user reviews follow.) “Blew my mind. I generally don't use 'learning' apps as they're mostly gimmicks. This one, though, truly made me think. I hope this developer comes out with more outstanding apps such as this one. Bravo!” — Iceitic “Astounding. That some people care passionately enough about tesseracts to go create a fantastic app for others to understand them is incredible. The app is extremely well designed, wittily written, and executed with love. That alone is worth buying it, besides the fact that I learned what the hell a tesseract was.” — Duncan MacMichael “Fantastic! This is what someone really smart, and who really knows how to teach well, can do with a tablet. And the authors are funny, too, which is a neat bonus.” — DNY “Fantastic app. I work at a leading UK university. If only all our material was this well written and presented. Definitely worth buying and then spending a bit of time with over a day or two to get your head around the fourth dimension. Great app!” — JulesFM “Great job! This app does the best job explaining the 4th dimension. Why learn it in some boring classroom when here you can have an interactive and visual explanation.” — Aco Strklalj Over 250,000 people have blown their minds with this app.

Graph is your powerful tool for visualizing mathematical functions—ideal for school, university, and anyone who wants to experience mathematics firsthand. 2D and 3D Display Seamlessly switch between classic 2D views and stunning 3D surface rendering. Graph functions with one or two variables and explore them interactively by zooming, panning, and rotating. Over 24 Mathematical Functions Trigonometric, hyperbolic, logarithmic, and other functions are at your disposal—including sin, cos, tan, ln, sqrt, and many more. Complex expressions with nested structures are reliably evaluated. Automatically Detect Special Points Zeros, y-intercepts, intersections, and points of tangency are automatically calculated and highlighted on the graph—so you can see the important properties of your functions at a glance. Individual Settings for Each Function Adjust the color, line thickness, resolution, and domain for each function individually. Graph multiple functions simultaneously and compare them directly. Save and Load Scenes Save all your work as a scene—including all functions, settings, colors, and camera positions. Reload saved scenes at any time and continue working seamlessly. Value Table View function values ​​anywhere and analyze the behavior of your functions in detail. Thoughtful Design Color-coded input validation, an integrated mathematical keyboard, and a modern glass-effect design ensure a pleasant user experience. Highlights at a Glance: 2D and 3D Function Display Over 24 Mathematical Functions Automatic Detection of Special Points Customizable Color and Display Settings Save and Load Scenes Value Table Mathematical Keyboard