THE IDEA is to find out if the midpoint is above or below the ideal line and then choose a pixel.<BR><BR>edit: and yes, your lab manual is wrong about the slope. Midpoint is generalized Bresenham.

A vector can be represented by a line segment labelled with an arrow. A vector between two points A and B is described as: A B →, a or a. The vector can also be represented by the column vector ...