12 CIRCLES AND ARCS: 12, STF, POS, VERT. NT NUM, P5=RADIUS(BY HORIZ. SCALE NUMS) P6=DEGR.1, P7=DEGR.2; ZEROS GIVE COMPLETE CIRCLE. P8=THICKNESS(0=1 LINE, 1=2 LINES, ETC.) βs IF P10 IS SET TO 1 A "BASIC" FILE NAME WILL BE REQUESTED.