Power program in LISP

[1]Write LISP program and define function named power that takes two numeric arguments, n and m, that computes nth power of m (i.e., m^n).

Answer

Without Recursion

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(defun  pow( )

(setf  m(read))

(setf  n(read))

(setf  c 1)

(dotimes  (i n)

   (setf  c ( * c m))

)

Expln:

Every lisp program will start a symbol '(' .

1) Define a function named 'pow'

2) Read 'm' variable

ie; scanf  in C

3) Read 'n' variable

4) Initialise  c=1

5) For loop 

ie;  in C, for(i=0;i<n;i++)

'dotimes' only for  increment operations.

For decrementing......use  another method for 'For-loop'..

(loop for ...) refer this 

6) Set  c=c * m

In LISP,

We will use  prefix notation.

ie; why we using 

(*  c m )