Language Reference

DO Function

DO (start, stop, increment);

The DO function creates a row vector that contains a sequence of evenly spaced numbers.

The arguments to the DO function are as follows:

start

is the starting value for the sequence.

stop

is the stopping value for the sequence.

increment

is an increment value.

The DO function creates a row vector that contains a sequence of numbers starting with start and incrementing by increment as long as the elements are less than or equal to stop (greater than or equal to stop for a negative increment). This function is a generalization of the index creation operator (:).

The following statements show examples of using the DO function: 

i = do(3, 18, 3);
k = do(3,  0, -1);
print i, k;

Figure 24.108: Arithmetic Sequences

i
3 6 9 12 15 18

k
3 2 1 0