[APP][2.2+] FunctionCapture - Function Plotting and Analysis (v1.3)

• Capture up to 3 functions and save or share a high resolution picture
• Draw all functions with the following math operators:
  - Powers and roots (any radicand)
  - Logarithmic operators with any base
  - Trigonometric functions, including inverse and hyperbolic
  - Constants like e and pi
  - Conversions like round, truncate or absolute value
• Full screen mode*
• Analyses these values:
  - Zeros
  - Extrema*
  - Inflection points*
  - Intersection points
• Table of Values
• Completely offline
• Lots of settings and customizations
• Documentation of all operators
• Languages: English, German, French
• Permissions: Access and Write Storage for Screenshots

Comments, bug reports, suggestions and reviews are highly encouraged!
Enjoy downloading, sharing and testing

Code:

[B]Version 1.3 (current, changes from v1.3b1): [/B]
[new] Added analyse of inflection points (Pro)
[changed] Auto add current editable function when selecting new one to edit
[changed] Increased defaults for max intervals and length of values (Settings)
[fixed] Various Bugfixes concerning the new touch code

Code:

[B]Version 1.3b1: [/B]
[new] Touch gestures added: fling, double tap to zoom in, double tap + swipe down/up to zoom in/out (Android 4.4+)
[new] New icons for a more polished help screen
[changed] Increased performance of Analyse dialog
[changed] Auto add current editable function when selecting new one to edit
[fixed] Last grid position now correctly restored on rotation and returning to app
[fixed] Bugfix: function restore returning from Immersive (KitKat+Pro only)

Older changelogs:

Code:

[B]Version 1.2.3: [/B]
[new] Added Chinese (traditional & simplified) translation, thanks Cecily from @Lockermaster)
[changed] Reduced apk size to 1MB using ProGuard

Code:

[B]Version 1.2.2: [/B]
[fixed] Critical bug: Analysis with same x values
[fixed] Rate now points to the right page in the free version

Code:

[B]Version 1.2.1: [/B]
[changed] Setting to adjust thickness affects both graph and grid line thickness now
[fixed] Readjusted thickness for grid lines

Code:

[B]Version 1.2 (from v1.2b2): [/B]
[changed] Updated and formatted Play Store description
[fixed] Critical support library bug on Froyo (and Gingerbread)
[fixed] Bug: Android Beam with multiple functions

Code:

[B]Version 1.2b2 (from v1.2b1): [/B]
[changed] Additional performance increase drawing the x and y axis
[changed] x and y axis layout optimization for all screen sizes
[fixed] "None in this interval" not showing in intersection
[fixed] Bugs: Function list too small after resuming; strange f(x)=x error

Code:

[B]Version 1.2b1: [/B]
[new] Huge performance increase!
[new] You can now share your entered functions with other devices with Android Beam (NFC) on Android 4.0+
[new] Option to show function labels in the grid (Settings)
[new] xxxhdpi launcher icon for your Nexus 5
[changed] Adjusted text and thickness for grid and unit view
[changed] Removed Antialiasing setting (always on now)
[changed] Switch to gradle-based build system and Android Studio
[fixed] Fixed Grid when returning from Immersive mode
[fixed] Bug: Whole numbers randomly disappearing in grid

Code:

[B]Version 1.1: (changelog from v1.1b1)[/B]
[changed] Slightly faster animations and toast in the FunctionList
[fixed] Pro version x and y values

Code:

[B]Version 1.1b1: [/B]
[new] Colors!
[new] Select the way the next color is determined (Settings)
[new] Option to show raster in grid (Settings)
[new] x and y values in grid are shown even if the axis is not visible
[changed] FunctionList works differently, now you can see the functions on the main screen.
[changed] Zooming is now 15% faster, let me know if it's too fast/slow
[fixed] x and y values now properly align on all screen sizes
[fixed] Improved drawing speed
[fixed] Translation fixes
[fixed] Bugs: not moving if previously zooming

Code:

[B]Version 1.0:[/B]
[fixed] Added none in this interval text if the analyse found nothing
[fixed] Bugs: pre Honeycomb dialogs and Help, actionMode on copying from analyse and table

Code:

[B]Version 1.0b5:[/B]
[new] Installable on external storage
[changed] Replaced share icon with [URL="https://github.com/nikwen/DynamicShareActionProvider"]DynamicShareActionProvider[/URL] (thanks to [user=5101348]@nikwen[/user])
[changed] Added Immersive mode (only on KitKat with Pro)
[changed] Updated targedSDK to KitKat
[changed] Updated actionBarCompat to v19

Code:

[B]Version 1.0b4:[/B]
[new] French translation
[new] shortcut to scientific notation (*10^) on the FunctionKeyboard
[changed] Hide list icon if no functions inserted
[changed] Removed larger layout (+setting)
[fixed] Code cleanups
[fixed] Bugs: list dialog, tutorial, ...

Code:

[B]Version 1.0b3:[/B]
[changed] Holo-themed FunctionKeyboard
[fixed] Bugs: Pro feature dialog, rt9x, tutorial, ...

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nikwen said:

What's that?

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nikwen said:

I just tested the tutorial.

However, after choosing tutorial once, every time I return to the app (e.g. via the built-in Android task switcher or by launching it from the app drawer), the tutorial is shown now. It starts every time.
After deleting the app data, it works fine again (until I press on tutorial :laugh.

Another thing: What's about hiding the keyboard when the tutorial is shown?
I can't read the text with the keyboard shown in the background.

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