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Return the lower and upper bound (smallest or largest available subscript)
for the specified array dimension.
 
LBOUND(array[,dimension%])
UBOUND(array[,dimension%])
 
    ■ array         The name of the array.
    ■ dimension%    Indicates the array dimension whose lower or upper
                    bound is returned. Use 1 for the first dimension, 2
                    for the second dimension, etc. The default is 1.
 
Example:
    DIM a%(1 TO 3, 2 TO 7)
    PRINT LBOUND(a%, 1), UBOUND(a%, 2)
 
See Also    ◄DIM, REDIM►