|VO EPT||[Vector Operation - Euler angle point rotation]|
|VO IA||[Vector Operation - Find Included Angle]|
.INITIAL ROTATION ANGLE, X & Y SHIFTS: [ang],[xs],[ys]
[The rotation angle, the x-shift value, and the y-shift value from the initial alignment cycle. These values will typically have been retrieved from a document file by an UNSAVE ('UD') operation just prior to the call to 'SA'.
.REFINED ROTATION ANGLE, X & Y SHIFTS: [angr],[xsr],[ysr
[The rotation angle, the x-shift value, and the y-shift value from the refinement cycle. These three values can also have been unsaved in the above manner from another document file, or if the 'SA P' is performed in the same session (procedure run) as the second cycle, they may simply be current register contents (see below).