Great! But..
Ive found another app similar to this but this by far has better interfacing and is easy to use. There are not many apps that can do 3D graphing like this which makes this probably one of the few and the best 3D graphers out there.
On another note, there are a few bugs and Ive encountered a crash at one point. Switching between graphs seems to be where the trouble lies, also the buttons are hard to touch.
The type of graph seems to be locked to degrees mode, I tried Sin(x) in radians and got it in degrees.
All in all, needs a bit of fixing up. But could be one of the most useful apps out there in upper level math!
Fate of Destruction about
Visual Math 4D