MATH 215 - Linear Algebra

Section 07
TTh 15:30-16:45
Location: STEWARD OBSERVATORY ADDITION 202

 

Instructor:

Selin Kalaycioglu

Email:

kalaycioglu@math.arizona.edu

Office Phone:

626-6883

Office:

MATH 513

Office Hours:

Tue 11-12, Wed 1-2, Th 2-3

 

This page contains information on:


 

Class Announcements

3rd test is next Thursday 4th of December. Our Final is on the 18th at 2:00 in the same classroom. There will be a problem session at 3 on Monday in the math building. We will meet in the math lobby, right when you enter the math building.
  • Review sheet pg1
  • Review sheet pg2
  • Review sheet pg3
  • Review sheet pg4

    Do not do the crossed ones and have a great Thanksgiving, enjoy the Turkey :)`

  • Solution pg1
  • Solution pg2
  • Solution pg3
  • Solution pg4

     

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    Homework Policy

     

    Homeworks will be assigned regularly and will be collected every Thursday before class starts. Selected problems will be graded and a final score equivalent to one test, 100 points, will be assigned.

    Homework is an essential component of the course, and your success will depend largely on how much time and effort you spend on working on the homework assignments.

    No late homeworks will be accepted.

    As for formatting, be sure that your name is at the top of each page, that all multi-page assignments are stapled, and that your writing is clear and legible.

    This course may be your first course in mathematics that really requires a substantial amount of explanation (rather than mere calculation) to get an answer correct. Thus, you will be graded on your ability to communicate your understanding of the problems (as well as, of course, the correct solution). Throughout the semester, and in the first couple of weeks in particular, I will go in more detail as to what I expect in various scenarios.

    Quizzes


    There will be occasional in class quizzes. These quizzes will be based entirely on problems from your homework, or problems we work on in class lectures. The quizzes will be graded and averaged into your 100 point homework score.

     

    Grades

     

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    Homework Assignments

     

    Date Assigned

    Date Due

     Assignment

    08/29/08 Fri

    09/04/08 Thu

    Textbook section 1.1: Odd # problems 1-13,14,18,21,22 section 1.2: Odd # problems 1-19,2,8,10,14,16,18,24,25,30,32,42,43,44,54,57,58,59,60,62,63 and

  • Matlab HW1

  • 09/08/08 Mon

    09/11/08 Th

    Textbook section 1.3:9,10,11,12,13,14,15,16,20,21,22,23,27

    09/11/08 Th

    09/18/08 Th

    section 2.1:12,13,14,17,16,20,22,24,30,32,36,40 section 2.2:odd # problems 1-13,18

    09/23/08 Tue

    09/25/08 Th

    section 2.2:23,25,30,39,40,41,45,46 and solve problem 27 and 33 using MATLAB and print out your code, just as a hint once you type a matrix A you can find its row reduced form by typing rref(A).

    29/09/08 Mon

    02/10/08 Th

    section 2.3:1,3,4,5,7,9,12,15,17,19,23,24,26,33,34,36,43,44,48

    10/04/08 Sat

    10/09/08 Th

    Section 3.1:1,5,7,8,9,10,11,12,13,14,15,16,17,18,19,21,29,31,35,39, 40, 41

    Notes: - For problem 35, give a proof if you're comfortable with mathematical induction. Otherwise, you may just explain without proof.

    MATLAB:

    - Input the matrices A = [-3, 4, 0; 1, -1, 5] and B = [1, 2, 3; 4, 5, 6; 7, 8, 9]. Try to compute A * B and B * A. One of these multiplications does not work; why not?

    - Find the transpose of A by typing A' (i.e. A followed by an apostrophe). Com- pute C = A * A' and D = A' * A. Notice that these are not the same matrix! They are both symmetric, though.

    - Compute B * D and D * B. Notice that matrix multiplication is not commutative.

    - Try to take the matrix powers A^2 and B^2. Notice that you can't square A because it's not square. Compute B^3 and B^4.

    - Compute B^0 and B^-1, then compute B * B^-1. What is the significance of the matrix B^-1?

    10/13/08 Mon

    10/21/08 Tue

    Section 3.2:1,2,3,4,19,20,21,23,24,25,26,28,34,35,36

    10/23/08 Th

    10/28/08 Tue

    Section 3.3:1,2,5,9,11,13,14,15,17,19,22,43,44,45,53 Section 3.5:1,2,3,4,5,7,9,10,11,18,22,25,27,36,39,40,41,42,45,46,55,57,59 (For most of these problems you check your work with MATLAB) MATLAB:

    Using matrix inverses solve the following system:

    a + b + 6c + 2d = 4

    7a + 6b + 7c + 9d = 9

    3a + 2b + 4c + d = 7

    5a + 6b + 8d = 9

    11/10/08 Mon

    11/13/08 Th

    Section 3.6:3,4,5,7,9,11,12,13,15,16,17,18,19,21,22,23,24,25

    11/17/08 Mon

    11/20/08 Th

    Section 4.1:2,5,8,12,14,18,23,26

    11/24/08 Mon

    12/2/08 Tue

    Section 4.2: Coming soon

     

     

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    Test Dates

    1st Test: September 18th

    2nd Test: October 30th

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