precision of parallel lines

[tyke]

If I draw a line starting at the origin then use the parallel line tool, the new line starts at a finite X or Y value eg 6.1234 e-17.
Not a show stopper but curious.
Also I was wondering if this offset was included in other lines but not seen.

Using Mac OS X 10.4.11

[andrew]

This has to do with the way how computers store real numbers. For details, please refer to:
http://en.wikipedia.org/wiki/Floating_p ... y_problems