If an array referenced in a program was never DiMensioned, it is automatically dimensioned to 11 elements in each dimension used in the first reference.

   10 DIM A(100)
   20 DIM Z (5,7), Y(3,4,5)
   30 DIM Y7%(Q)
   40 DIM PH$(1000)
   50 F(4)=9 : REM AUTOMATICALLY PERFORMS DIM F(10)

   10 DIM S(1,5), T$(1)
   20 INPUT"TEAM NAMES"; T$(0), T$(1)
   30 FOR Q=1 TO 5: FOR T=0 TO 1
   40 PRINT T$(T),"SCORE IN QUARTER" Q
   50 INPUT S(T,Q): S(T,0)= S(T,0)+ S(T,Q)
   60 NEXT T,Q
   70 PRINT CHR$(147) "SCOREBOARD"
   80 PRINT "QUARTER"
   90 FOR Q= 1 TO 5
  100 PRINT TAB(Q*2+9) Q;
  110 NEXT: PRINT TAB(15) "TOTAL"
  120 FOR T=0 TO 1: PRINT T$(T);
  130 FOR Q= 1 TO 5
  140 PRINT TAB(Q*2+9) S(T,Q);
  150 NEXT: PRINT TAB(15) S(T,0)
  160 NEXT