G02------Circular interpolation in clockwise direction (note that this direction is subject to the later tool post)
Format 1: G02X(u)__Z(w)__F__
(1) G02 can also be written as G2.
Explanation: (1) Cannot be used for programming of a full circle G02-------clockwise circular interpolation (note that this direction is subject to the tool post set later)
(2) R is the radius of the R arc on one side of the workpiece. R is a sign, "+" means the arc angle is less than 180 degrees; "-" means the arc angle is greater than 180 degrees. The "+" can be omitted.
G03------Circular interpolation in counterclockwise direction (note that this direction is subject to the subsequent tool post)
Format 2: G03X(u)__Z(w)__F__
Note: The format is the same as the G02 command except that the arc rotation direction is opposite.