Q) When I zoom in on a curve or circle, it looks like someone flattened the edges and the curves are very rough. Lines drawn to the edge of the curves do not appear to meet correctly. What am I doing wrong or missing?

A) Circleres is the command to type in to change the resolution at which the curves are displayed. Set circleres as high as 1024 to get perfect results every time. You will sacrifice some speed (not very noticeable on the fast computers of today) but they will always look correct. You may have to type REGEN after setting the value, to regenerate and display the curves at the new resolution. There is a separate setting in the print command to help control the resolution of curves when plotted.