I have the following code snippet:
if (ABS(p43.x) < EPS && ABS(p43.y) < EPS && ABS(p43.z) < EPS) return(FALSE);
Which I'm trying to convert to C#. What does "EPS" mean?
This code is from http://local.wasp.uwa.edu.au/~pbourke/geometry/lineline3d/