MCS-221 Problems: Fall 2002

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Last updated 10/8/02 noon

MCS-221 Problem Assignments: Fall 2002

Section	Practice problems*	Problems to turn in	Due date
2.1	1, 3, 5, 7, 11, 13	2, 4, 8	M 9/30
2.2	1, 2,3 , 4, 5, 15, 16, 28, 29	7, 8, 10, 14, 20	F 10/4
2.3		2, 4	T 10/8
2.3 plus	11 Maple	10 Four subspaces problem	T 10/15

* These are merely some suggested problems. You should work as many problems as necessary to master the ideas.

Unless otherwise indicated, the problems are from our text, Linear Algebra: Ideas and Applications, by Richard Penney.

Acknowledge your sources (people and texts).
In nontrivial problems, show how you get your answers.
Turn in neat, well-written solutions, not messy first drafts. Trim "fringes." Staple.
Do not copy collaborative solutions; write up solutions in your own words.
Turn in homework on time. Each class day late reduces the possible points by 25%.
Do extra credit problems entirely on your own.

Proofs should be written in complete sentences. Mathematical expressions should be embedded in a grammatically sensible way. Look at your math texts to see how this is done.
Every step in a proof is or can be justified by a reason. Valid reasons include assumptions, definitions, and previously established results. The extent to which reasons are omitted and proofs abbreviated depends on the audience.