Mathmatiz Version 3.0.8 Updated

Improvements

- More plotting customization features:

1. Curve type can be specified (solid line, dash line, dot line).
2. Grid on plotting window can be turned on/off.
3. The point of intersection of the coordinate axes can be specified at (0,0).

Bug Fixes

1. Fixed the bug causes program crash when click Done button in the edit function window.
2. Fixed the bug of Zoom in-out issue.
3. Fixed the bug of touch screen move issue.