# 2D

From BC$ MobileTV Wiki

2-Dimensional space (commonly abbreviated as *2D*) is any space with 2 axis points of reference. The most common axis are X (left-and-right) and Y (up-and-down). Any other direction in *2D* space can be seen as a combinational movement along these two axes (i.e. a horizontal movement/line is really just *+/-*X and *+/-*Y).

## Slope

A line within *2D* space has a slope (*M*), defined by

Y2 - Y1 M = _________ X2 - X1

## External Links

- wikipedia: 2-D
- wikipedia: Traditional animation
- Slope Formula: http://math.about.com/library/blslope.htm