Dotimes Construct in LISP

In this article, we will discuss the dotimes loop in LISP. The dotimes is a looping statement used to iterate the elements.  Unlike other looping constructs, it only loops for a specified number of iterations.

Syntax:

(dotimes (n range)
 statements
---------------
--------------
)

where,

1. n is the starting number-0
2. The range is the last number till that loop ends.
3. The statements are the things that are done inside the looping

Example: LISP Program to print cubes of first 20 numbers

Lisp

;define range upto 20
(dotimes (n 20)

;display cube of each number
    (print (* n(* n n)))
)

Output:

0 
1 
8 
27 
64 
125 
216 
343 
512 
729 
1000 
1331 
1728 
2197 
2744 
3375 
4096 
4913 
5832 
6859 

Example 2: LISP program to display the sum of each number.

Lisp

;define range upto 20
(dotimes (n 20)

;display sum of each number
    (print (+ n n))
)

Output:

0 
2 
4 
6 
8 
10 
12 
14 
16 
18 
20 
22 
24 
26 
28 
30 
32 
34 
36 
38 

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