Perimeter and area procedures

Reference no: EM131043099

Implement a representation for rectangles in a plane. (Hint: You may want to make use of exercise 2.2.) In terms of your constructors and selectors, create procedures that compute the perimeter and the area of a given rectangle. Now implement a different representation for rectangles. Can you design your system with suitable abstraction barriers, so that the same perimeter and area procedures will work using either representation?

exercise 2.2

Consider the problem of representing line segments in a plane. Each segment is represented as a pair of points: a starting point and an ending point. Define a constructor make- segment and selectors start-segment and end-segment that define the representation of segments in terms of points. Furthermore, a point can be represented as a pair of numbers: the x coordinate and the y coordinate. Accordingly, specify a constructor make-point and selectors xpoint and y-point that define this representation. Finally, using your selectors and constructors, define a procedure midpoint-segment that takes a line segment as argument and returns its midpoint (the point whose coordinates are the average of the coordinates of the endpoints). To try your procedures, you'll need a way to print points:

Reference no: EM131043099

Questions Cloud

Integrated into long-term business strategy : In this example, you are asked by the president of the company to pick three of these impediments and provide some recommendations to improve it within the company. Defend your recommendation(s), and include specific actions, milestones/deadlines,..

Alternative procedural representation of pairs : 4. Here is an alternative procedural representation of pairs. For this representation, verify that (car (cons x y)) yields x for any objects x and y.

How organization can best develop-manage star performer : Alex Sander is a new product manager whose drive and talents are attractive to management, but whose intolerant style has alienated employees. This tension is presented against the backdrop of a 360— performance review process. On the other hand, Gla..

Goals-approaches of health care operations management : To make the best use of the concepts and tools of operations analysis, a manager must understand what health care operations management actually encompasses. For this Discussion, you are asked to summarize the functions and goals of operations man..

Perimeter and area procedures : Implement a representation for rectangles in a plane. (Hint: You may want to make use of exercise 2.2.) In terms of your constructors and selectors, create procedures that compute the perimeter and the area of a given rectangle. Now implement a di..

Identity component as consumerism relates to gender roles : Explain the connection between consumer culture and the rise of the post-war family type. Be sure to examine the identity component as consumerism relates to gender roles of the time, and be sure to provide concrete examples to back up your claim..

Some of the stressors that these managers experience : Project teams are made up of individuals from various areas and developments in a company. The most important member of the project team is the project manager. He is often under greater pressure than the rest of the team members. What are some of th..

Discuss in detail 4 types of reward systems : What goals would you set for the sales staff, given your answer to number 1?

What type of employee voice mechanism should be implemented : For a nonunion business situation such as a hotel, what type of employee voice mechanism should be implemented? Why? Outline the structure of the employee mechanism (voluntary or mandatory, individual group or group, decision making authority or just..

User Account

All Pages