Define procedure to input integers and returns the average, C/C++ Programming

The procedure +, * and list take arbitrary numbers of arguments. One way to define such a procedure is to use define with dotted-tail notation. In a procedure definition, a parameter list that has a dot before the last parameter name indicates that, when the procedure is called, the initial parameters (if any) will have as values the initial arguments, as usual, but the final parameter's value will be a list of any remaining arguments. For instance, give the definition:

(define (f x y . z) )

the procedure f can be called with two or more arguments. If we evaluate

(f 1 2 3 4 5 6)

then in the body of f, x will be 1, y will be 2, and z will be the list (3 4 5 6).

Given the definition:

(define (g . w) )

the procedure g can be called with 0 or more arguments. If we evaluate

(g 1 2 3 4 5 6)

then in the body of g, w will be the list ( 1 2 3 4 5 6).

(a) Use this notation to write a procedure average that takes one or more integers and returns the average. For example:

(average 1 2 3 4 5 6 7) => 4
(average 2) => 2

(b) Write a procedure called pipeline that accepts a variable number of arguments that are procedures and returns the composition of those procedures. This is called pipeline processing. You may assume that all procedures in the pipeline accept a single argument. For example:
(define square-cubed (pipeline square square square))
; is equivalent to:
(define square-cubed (lambda (x) (square (square (square x)))))
(square-cubed 2) => 256

(c) Using your definition for pipeline from (b), write procedures for cdar, cddar and cdadr.

Posted Date: 3/25/2013 1:10:19 AM | Location : United States







Related Discussions:- Define procedure to input integers and returns the average, Assignment Help, Ask Question on Define procedure to input integers and returns the average, Get Answer, Expert's Help, Define procedure to input integers and returns the average Discussions

Write discussion on Define procedure to input integers and returns the average
Your posts are moderated
Related Questions

Write algorithm and program for the conversion of a Tree to a Binary Tree

what is binary heap ? what is the c code for the implementation for the binary heap

Draw a circle in c program: void main() { clrscr(); int i,r=50,t,j,x,y; int gd,gm; gd =DETECT; initgraph(&gd,&gm,""); for(x=50;x for(y=50;y {   i

write a C code that plots an object on the window and on the user''s click of mouse on the window, the object starts rotating continuously until the user presses the mouse again

Make a list of functions that are standard in C++. You must include each of the following for each function: Name of function Its parameters Data type it returns

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Consider the following example: int max(int x, int y)                  {                                 return ( x > y) ? x : y ;                  }   float max

C Program to FIND VOWELS   void main() {           char str[50];           int ac=0, ec=0, ic=0, oc=0, uc=0;           int i,stln,vc,word=1;           clrscr

develop a program read the following information from the keyboard in which base class consist of employee name code and destingnation the derived class contain the data members th