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FOR...NEXT Statement Programming Example
 
This example prints the first 11 columns of Pascal's triangle:
 
'Print the first MAXCOL columns of Pascal's Triangle, in which
'each number is the sum of the number immediately above it
'and the number immediately below it in the preceding column.
 
CLS                         ' Clear screen
CONST MAXCOL=11
DIM A(MAXCOL,MAXCOL)
FOR M = 1 TO MAXCOL
    A(M,1) = 1 : A(M,M) = 1 'Top and bottom of each column is 1.
NEXT
FOR M = 3 TO MAXCOL
   FOR N = 2 TO M-1
      A(M,N) = A(M-1,N-1) + A(M-1,N)
   NEXT
NEXT
Startrow = 13                'Go to the middle of the screen.
FOR M = 1 TO MAXCOL
   Col = 6 * M
   Row = Startrow
   FOR N = 1 TO M
      LOCATE Row,Col : PRINT A(M,N)
      Row = Row + 2          'Go down 2 rows to print next number.
   NEXT
   PRINT
   Startrow = Startrow - 1   'Next column starts 1 row above
NEXT                         'preceding column.
 
Output
 
                                                  1
                                             1
                                        1         10
                                   1         9
                              1         8         45
                         1         7         36
                    1         6         28        120
               1         5         21        84
          1         4         15        56        210
     1         3         10        35        126
1         2         6         20        70        252
     1         3         10        35        126
          1         4         15        56        210
               1         5         21        84
                    1         6         28        120
                         1         7         36
                              1         8         45
                                   1         9
                                        1         10
                                             1
                                                  1