NOTE: this application is for computer science students or geeks. It is not useful for regular life.

This application draws Julia set, very similar to Mandelbrot set, a kind of fractal.
http://en.wikipedia.org/wiki/Julia_set

This application has two computation mode, multi threading on CPU, or parallel computing on GPU based on Android's Render Script API.
You can test difference of performance between CPU and GPU. Normally GPU computing is faster than CPU mode.

you can see source codes on GitHub, try URL below.
https://github.com/tmf3jr/JuliaRenderer