touchGrapherPro

To try the app first, you can download the free version here: https://play.google.com/store/apps/details?id=com.maslak.touchGrapher


touchGrapherPro is a graphing calculator unlike any other. Its highly intuitive interface lets you quickly do things that would normally take a few times as long. A very useful tool for students of Math-related subjects makes you more effective in many tedious tasks.


Plot graphs of functions, curves, add parameters to them, interpolate a set of points to a function and many more in a matter of a few taps on the screen. Optimized for both tablets and smartphones, the app runs smoothly even on devices from a few years ago. This all makes Maths and analytic geometry as pleasant as never before.


Extra features of touchGrapherPro:
- no ads
- plot curves from parametric equations or in polar coordinates
- introduce parameters to formulas and adjust them in real time
- import and export graphs to text file
- draw complex graphs in seconds from the list of examples(e.g. Lissajous curve, cissoid, and many more)
- remove single points attached to graphs
- save screenshots in selectable resolutions and share them instantly from the app
- unlimited number of graphs at once
- improved performance
- refined user interface


Besides, all the features from regular touchGrapher:
- plot graphs of functions on a plane
- numerical integration
- generate functions from a discrete set of points:
- linear regression
- exponential regression
- polynomial interpolation
- find zeros and local extrema of functions, intersection points of two functions
- save graphs to image file
- modify graphs' appearance after they have been plotted


More fancy features planned for future releases!