10 LET creal=-0.8
 20 LET cimag=0.156
 30 FOR v=-16 TO 16
 40 FOR h=-64 TO 64
 50 LET x=h/40
 60 LET y=v/20
 70 FOR i=1 TO 50
 80 LET zreal=x*x-y*y+creal
 90 LET zimag=x*y*2+cimag
100 IF zreal*zreal>1000 THEN GO TO 150
110 LET x=zreal
120 LET y=zimag
130 NEXT i
140 PLOT h+100,150-v
150 NEXT h
160 NEXT v