# JHR's MA371 page

## MA371 Linear Algebra

MTRF 5 M107
Textbook: A First Course in Linear Algebra, current on-line version, by Robert A. Beezer.
John Rickert, Associate Professor of Mathematics
Office: G-215A, Crapo Hall
Phone: (812) 877-8473

e-mail: john.rickert@rose-hulman.edu
CM 141

Office hours : MTRF 7 or make an appointment, or drop in.
The final exam takes place Monday, November 16, 6:00PM-10:00PM EST in G313.

For Friday, September 4: Read Chapter SLE and work Exercise WILA.M70. Turn in this exercises on Monday.

For Monday, September 7: Turn in WILA.M70. Work exercises SSLE.C10,C30,C31,M40,M70. Turn in these exercises on Tuesday.
For Tuesday, September 8: We will have a quiz about RREF and solutions to linear systems.
Turn in the SSLE homework exercises. Work exercises RREF.C12,C19,M50,T10.
For Thursday, September 10: Turn in Tuesday's homework (Section RREF). Work exercises TSS.C24,M70,T40; HSE.C23,C31. Turn in these exercises on Monday.
For Friday, September 11: Work exercises HSE.M50-52,T10,T20; NM.C30,C50,T10.

For Monday, September 14: Turn in the exercises from TSS and HSE assigned for discussion Thursday. Work exercises VO.C10,T05,T31; LC.RQ2,M10.
For Tuesday, September 15: Work exercises SS.C23,C42,M10,M11,T10. Turn in these exercises on Thursday.
For Thursday, September 17: Turn in the Section SS exercises. Work exercises LI.C20,C25,C31,M20,T10,T20. Turn in these exercises on Friday.
For Friday, September 18: Turn in the Section LI exercises. Work exercises LDS.C20,C52,T40.

For Monday, September 21: Work exercises O.C21,M60,T20. Review facts about matrices.
For Tuesday, September 22: Work exercises O.C21,M60,T20 and the Gram-Schmidt exercises from the worksheet passed out in class. Turn in these exercises on Thursday. Review facts about matrices.
For Thursday, September 24: Turn in the worksheet exercises. Work exercises MO.C13,C14,M22,T14,T30,T35.
Friday, September 25: Exam #1. The exam will cover through the introductory material on matrices. The average score on the exam was 131/160. Equivalent grades are A 138-154, B 122-137, C 106-121, D 90-105.

For Tuesday, September 29: Work exercises MM.C22,C30,C32,T31,T32; MISLE.C16,C23.
For Thursday, October 1: Work exercises MISLE.C21,C22,C41,T10; MINM.C40,T10,T25.
For Friday, October 2: Work exercises CRS.C20,C34,C42C (i.e., do C42 for Archetype C). Turn in these exercises on Monday.
The corrected worksheet and Maple file from class are available on Moodle.

For Monday, October 5: Turn in the CRS exercises. Work exercises FS.C26,C61.
for Tuesday, October 6: Work exercises VS.M11,M15,T21,T23.
For Monday, October 12: Work exercises S.C15,C20,M20,T20; LISS.C20,C24,T20.

For Tuesday, October 13: Work exercises B.C11,C12,C14,T50; D.C23.
For Thursday, October 15: Review for the exam.
Friday, October 16: The average score on Exam #2 was 107.1/160. Equivalent grades are A 126-150 B 106-124 C 86-105 D 66-85 F <66.

For Tuesday, October 20: Work exercises DM.C21,C29,M11,M15,M16; PDM.C30B,M20,T20.
For Thursday, October 22: Work exercises EE.C10,C19,C24,C27,T10,T20. Turn in the exercises on Friday.
For Friday, October 23: Remember mole day. Turn in the Section EE exercises. Work the exercises on the worksheet and PEE.T20,T30.
For Monday, October 26: Work exercsies PEE.T22 and SD.C20.
For Tuesday, October 27: Work exercises SD.T15,T17.
For Thursday, October 29: Look at the worksheet exercises. LT.C15M,M60,T30; ILT.C10M,C26,T10,T15,T20; SLT.C10M,T15,T20.
For Friday, October 30: LT.C15M,M60,T30; ILT.C10M,C26,T10,T15,T20; SLT.C10M,T15,T20.
For Monday, November 2: Work exercises IVLT.C20,C25(1-3),T05,T30. Turn in these exercises on Tuesday.
For Tuesday, November 3: Turn in the IVLT exercises. Work exercises VR.RQ2,C10,M20.
For Thursday, November 5: Work exercises MR.C20,C22,C42,C52,M20.
Friday, November 6: Exam #3 average was 89.3/120. Equivalent grades are A 103-120 B 87-102 C 71-86 D 55-70 F <55.

For Monday, November 9: Work exercises CB.C30,C41,T10.
For Thursday, November 12: Work the exercises OD.T10.

### Course Policy

Material added since the beginning of class will be in purple
This class will have three in-class exams.
The final exam will be given during finals week. If you are making arrangements for travel home, you should make sure that they will not conflict with the final exam schedule. If your parents will be purchasing airline tickets for you, you should contact them and remind them not to schedule you on a flight that might cause you fail a class.
The weights for the grade are given below.
Homework is due at the beginning of class on the day that it is due. You should turn in your homework in a pile on the desk at the front of the classroom. Homework may be turned in later but will be penalized based on just how late it is - typically
1 point off for turned in late during the class,
5% off for being turned in late the same day,
10% off per day. (weekends count for two days) i.e. 10 days later, it's too late to get a makeup homework turned in.
When writing up homework, you should circle (or otherwise clearly indicate) your answers.
It's good to work together, but you should write/type your own homework. Simply copying another person's work, document, or file is not acceptable.

If you have any questions while I'm not around, you may e-mail me at john.rickert@rose-hulman.edu and I will reply as soon as I can.

You should come to class prepared. This means that I expect you to have done the homework, brought your book to class and launched Maple at the beginning of class.
you have a cell phone, please make sure that it does not ring audibly during class. Phone calls should, in general, not be answered during class.

• If you don't understand something, ASK
• If I'm going too fast, STOP ME. I enjoy mathematics. When I get on a roll, I tend to keep going.
• SHOW YOUR WORK. The correct answer will only be worth 1 point. I want to verify that you understand the process.
• If you are having problems understanding the material, come and see me.
There will be three in-class exams worth 16% each.
The final exam will be worth 32%.
Homework and Quizzes will be worth 20%.

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