Quick Graph 4 is the biggest update yet. • A new look: floating controls leave the whole screen to the graph, on iPhone and iPad. Light or dark, your choice. • Smoother 3D: surfaces drawn with Metal, with smooth shading, transparent colors, and zoom that fills the screen. • More precise 2D: exact roots and extrema, and no more lines across asymptotes. • Equation groups: show, hide and move several equations as one, with one n for the whole group or one for each. • Annotations: draw on your 2D graphs with Apple Pencil or a finger. They stay in place as you pan and zoom. • Share a graph as a link that opens right in Quick Graph. • A redesigned keyboard: same keys, a cleaner look. Hold a key with a corner tick for more. • New examples in the library, and a quick way to restore the originals. • Ready for iPhone Duo, Split View and Stage Manager.

- Fixes an iPad issue in which multiple open documents could display the wrong content. - Fixes issue with the value table if mixed coordinate systems were present. - Other bug fixes and performance enhancements.

Better, faster, more powerful. We've cleaned up behind the curtains to make your Calculator even better. It's been a long time since the previous update; during this time, we were rebuilding the Calculator from scratch to make sure we resolved the issues you were having and took full advantage of the new technologies we have at our disposal today. - We have made it easier to write equations - Improved the control bar to make the interface even more straightforward. - Created a visualization system that allows for greater detail and precision when graphing.

Bug with external displays fixed

- iOS 12 support - Split view in iPad support - Bug fixes

A few minor updates to make QuickGraph an even better Calc. - Optimized for iPhone X - Fixed issue with Var slider - Change to native share to enhanced experience

- Fixed weird colors on tool bar - Change second tool bar position - Bug fixes

- Fixed error that caused some users to stay in Loading even after they had finished loading. - Fixed bug on random color option - Minor improvements

Thanks for using Quick Graph, with your feedback we made awesome improvements. - Performance improvements - Design improvements - iPad Pro support (12.9 and 10.5) - Bug fixes - Icon update More features coming soon, We are constantly working to make it better.

Fixes a crashed inadvertently added in last version. Oops !

Thanks to the users who write us, we could identify bugs to fix and improve the app to make a more stable version of Quick Graph. This version was focused on fixing things, but soon there will be another release with new features. Thanks for using our App.

Bug fixes

* Minor bugs fixed * Updated Help

Fixing crash when keyboard was dismissed

Fix: Dot/Lines on 3D list Add: Max value for 2D Polar Bug fixes

Improvement for settings of variable N on the iPad Adding separation lines for the value table Fix: Expressions were rendered pixelated Fix: Color picker in the iPad Fix: Option to select all expression from list and library

64Bit support iPhone 6 support Plot lines in 2D and 3D Minor bug fixes

- You can now plot a list of one or more points in 2D and 3D, by using the syntax [x, y, z, x1, y2, z2...] (Requires advanced features) - Bug Fixes

Fixes a potential crash using external displays (or airplay) when switching 2D/3D modes.

iOS7 Support

[NEW] Variable "n", which acts as a global variable that can be used to modify graphs in realtime. If one or more expressions use n, a configurable slider will appear on screen that allows you to dynamically change the value for n. (2D / 3D, requires advanced features) [NEW] Extrema: minima / maxima in trace mode for explicit expressions. (requires advanced features) [NEW] Values for X and Y axis in terms of π (2D, requires advanced features) [FIX] Purchasing advanced features now correctly refreshes the toolbar for access to the value table. [FIX] Decimal numbers no longer require a trailing zero (0.9 can now be written as .9) [FIX] Bug fixes, thank you for all your bug reports.

[FIX] Several bug fixes, including a bug when copying an image [NEW] Improved, more intuitive expression entry screen [NEW] Roots and Intersections when tracing (requires advanced features) [NEW] Value Table (requires advanced features)

[FIX] Fixes a crash under iOS4, when trying to add new expressions (Requires iOS 4.3). [FIX] Fixes a problem when exporting a 3D graph under iOS6 [NEW] iOS6 + iPhone 5 support IMPORTANT: This same update for QG+ will be available soon

[FIX] Fractional exponents should work better now. [FIX] Custom VGA out can now be turned off to enable mirroring. [FIX] Improved expression input field, it now behaves like a standard field, including selections and the magnifying glass. [FIX] Improved support for external keyboards: arrow keys now work as expected. Also, typing "pi", "theta" or "phi" will replace that name for the corresponding symbol. [FIX] Improved zoom range in 3D [NEW] Quick Graph is now available in Spanish, German and French. [NEW] Graphs can now be shared via Twitter (iOS 5+) [NEW] Custom URL support. Now 3rd party apps can ask Quick Graph to plot an equation (quickgraph://) [NEW] Axes can now be turned off in 3D mode. [NEW] In 3D, tapping on an axis' label will lock the rotation around that particular axis.

[NEW] Quick Graph+, a new paid app, is now available in the store. It is equivalent as unlocking the "Advanced Features" in Quick Graph, while making it available for educational institutions that are eligible for educational volume discounts. [NEW] External Keyboard Support [FIX] Retina support on New iPad [FIX] Fixed bug in which the x,y,z labels would be displayed as solid squares. More to come soon! Important Note: starting with the next update, Quick Graph will no longer support iOS 3.