Math 2270 (Linear Algebra), Fall 2009

 

Dr. Enka Lakuriqi
Office & office hours: LCB 202, Thu 9.40-10.30 a.m. & by appointment
webpage: http://www.math.utah.edu/~lakuriqi
email: lakuriqi@math.utah.edu

Details

Course Days Time Room
2270-1 M,T,W,F 9:40-10:30 a.m. JTB 120

Textbook

We will follow "Linear Algebra with Applications" (4th edition) by Otto Bretscher, chapters 1 to 8.

Prerequisites

A grade of C or better in Math 1220 (Calculus II), (or Math1260, Math1280, or equivalent)

Homeworks

Homework will be assigned weekly (every Friday) and will be due the following Friday, at the beginning of class. The assignments will be posted online (see bottom of the page). Feel free to work in groups, however, in the end you ought to write up your own solutions. When submitting a homework, follow these guidelines! No late homework will be accepted. Lowest homework score will also be dropped. From each homework set, only three problems will be graded. Each problem is graded out of 3 points: 3-very good, 2-some little mistake, 1-some work toward a solution, 0-forget about it.

Exam Schedule

• Exam 1: Oct 2nd, 2009 (during class), (Review Sheet: [pdf]), (Exam 1 Solutions: [pdf])
• Exam 2: Nov 13th, 2009 (during class), (Review Sheet: [pdf]), (Exam 2 Solutions:)
• Final Exam: Dec 17th, 2009, 8:00-10.00 a.m. (same classroom)

All exams are closed-book. No calculators are allowed. The final exam is comprehensive.

Make-up Policy

I follow the department's policy to not offer make-up exams unless there is a strong excuse (life circumstances that are impossible to avoid) for missing the exam. In other cases, please feel free to contact me in advance.

Notes

• You are expected to conduct yourself in a professional manner. This includes classroom etiquette, email correspondence, and written work. All work must be in line with the guidelines linked above.
• In addition to the lecture times, you should plan to work another eight hours (for every hour in class, 2 hours of work on your own) on the side studying and doing problems. This amount of time may vary from student to student depending on the mathematical background.
• You are strongly encouraged to regularly attend lecture, in particular if you have difficulty understanding the textbook on your own. Try to follow as much as you can by asking questions. One way of making the class more accessible is to come prepared. Read the section in advance to get some idea of what is going to be covered. If you can't follow, it is not the end of the world.
• Make sure that you dedicate every evening some time to read the notes together with the book, going over/doing examples covered in class and on the book, and understanding them. (Important: The notes must be mastered.) Then close the notes and the book and attempt only those homework problems that pertain to the section studied. If there are problems, reiterate the process. If you find it hard, don't get discouraged as you are not alone.
• If there are still gaps, come to my office hours and ask questions. If you need more help than the office hour can give you, do not be discouraged to ask me for other times. I may be busy, but will try my best to find time for you; the worst that can happen is that I will ask you to come at another time. Also, don't leave getting help for the last moment.
• Additionally, you can get help from a Tutor (free of charge) at the Math Center, located on the first floor between the two Math buildings (JWB and LCB). The hours are Monday-Thursday 8am-8pm and Friday 8am-6pm.

Grade

The final score will consist in a weighted average of your homeworks (30%), exams (20% each), and final (30%). You can track your scores on WebCT/Blackboard.

Disability

Students with documented disabilities or other special needs that require special accomodation must register with the Center for Disability Services. After you've registered, contact me at least a week before each exam so that I can contact the center and send the exam.

Weekly Assignment

Follow these Guidelines.

1. (due Friday, Sept. 4th)
   • Read the guidelines.
   • 1.1 # 4, 10, 15, 26, 29, 31, 35, 37
   • 1.2 # 7, 14, 18, 24, 25, 26, 46
   • 1.3 # 1, 3, 17, 19, 20, 27, 37, 54, 58, 68
2. (due Friday, Sept. 11th)
   • 2.1 # 1, 2, 3, 5, 13, 15, 32, 40, 43
   • 2.2 # 2, 4, 12, 16, 19, 20, 26(a)(c)(e), 32
   • 2.3 # 1, 5, 7, 13, 16, 21, 25, 27, 43, 44, 45, 46, 47, 48, 58, 65
3. (due Friday, Sept. 18th)
   • 2.4 # 1, 6, 7, 22, 23, 28, 29, 38, 57, 64, 67, 68, 69, 78
   • Chapter 2 Exercises. Page 98. True or False? Justify! # 2, 3, 4, 8, 17, 26, 32, 39
4. (due Friday, Sept. 25th)
   • 3.1 # 1, 5, 8, 15, 16, 18, 20, 24, 25, 27, 30, 35, 38, 40, 48
   • 3.2 # 1, 2, 3, 6, 8, 16, 18, 20
   (due Monday, Oct. 5th)
   • 3.3 # 7, 8, 9, 16, 21, 25, 26(a), 28, 31, 36
5. (due Monday, Oct. 19th)
   • 3.3 # 35, 67, 68
   • 3.4 # 5, 12, 15, 20, 22, 27, 31, 33, 37, 40, 50, 55, 56, 58, 63
6. (due Friday, Oct. 23rd)
   • 4.1 # 3, 4, 8, 9, 12, 16, 18, 26, 27, 32, 48(b)
7. (due Friday, Oct. 30th)
   • 4.2 # 1, 13, 22, 27, 33, 52, 55, 66, 67, 78, 79
   • 4.3 # 1, 7, 21, 37, 51, 61, 64, 66, 68
   • Chapter 4 Exercises. Page 184. True or False? Justify! #1, 2, 13, 15, 17, 25, 30, 34, 42, 54, 62, 67
8. (due Friday, Nov. 6th)
   
   • 5.1 # 1, 5, 10, 16, 22, 26, 28, 29
     
   • 5.2 # 1, 3, 4, 13, 32
     
   • 5.5 # 9, 14, 16a
     
9. (due Monday, Nov. 16th (recommended to be completed for practice before Friday, Nov. 13th))
   
   • 5.2 # 38
     
   • 5.3 # 1, 7, 8, 21, 22, 23, 33, 37
     
   • 5.4 # 24, 26, 32
   • 5.5 # 11, 24, 25
     
10. (due Wednesday, Nov. 25th)
    
    • 6.1 # 4, 6, 10, 18, 22, 30, 34, 49, 56, 60
      
    • 6.2 # 2, 12, 16, 18, 29, 35, 36, 46, 66
      
    • 6.3 # 7, 16
      
    • Chapter 6 Exercises. Page 292. True or False? Justify! # 3, 12, 14, 19, 31, 40, 47