Functional Problem Solving (CSC 151 2014S) : EBoards

CSC151.02 2014S, Class 12: Raster Graphics and RGB Colors


Overview

Preliminaries

Admin

Upcoming Work

Questions re Exam

Clarification: Can we use conditionals?

You haven't learned conditionals in this class. So NO!

What do we mean by implement?

Write the procedure. (I will try to clarify in the exam.)

For the miltary to civilian time, do we only have to deal with whole numbers?

Yes.

When you ask about the effects on our checkboard, can we answer in English or should we write code?

English.

Will you grade us on concision in addition to correctness?

I look primarily at correctness, but really muddled code is likely to lose points (not least because I may not be able to tell that it's correct).

In part B, should we group the orignial and new drawing?

No. I just want the newly computed drawing.

Do we have to code the white rectangle in the back of the ellipses?

No They were just rendered on a white background.

What do you mean by format the code more clearly?

Indent in such a way that the arguments to a procedure are clear. And follow the conventions you've seen us use.

(+ (* 5 34) 3)

The following is not well indented

(+ (* 5
      34) 3)

The folowing is particularly poorly indented ( + (* 5 34 ) 3) _

Questions re Raster Graphics and RGB Colors

Questions re Quiz

Quiz

When you finish the quiz, start the lab. Raise your hand if you have questions.

I will collect quizzes once you start the lab.

Lab


Samuel A. Rebelsky, rebelsky@grinnell.edu

Copyright (c) 2007-2014 Janet Davis, Samuel A. Rebelsky, and Jerod Weinman. (Selected materials are copyright by John David Stone or Henry Walker and are used with permission.)

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/3.0/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.