MATH 225 N1, Introductory Matrix Theory
Instructor: Jung-Jin Lee (junglee2@uiuc.edu)
Office: 341 Illini Hall
Phone: 217-333-6499
Office Hours: Wed 3:00 pm ~ 4:00 pm or by appointments (email me to set up an appointment)
Nov 18 (Tue): Solution to Exam 3 practice problem #4
Nov 14 (Fri): The final will take place 8am~11am, Wed, Dec 17.
Nov 14 (Fri): Solutions to Homework 6, 7 were posted.
Nov 12 (Wed): Suggested problems from Sections 5.3 and 6.1. This is NOT homework.
Section 5.3: #2,8,14,17,19,21,22,23,27,31. Solution Section 6.1: #1,4,7,10,14,16,24,27,28,31. Solution
Nov 8 (Sat): Exam 3 on Thu, Nov 20, will cover Sections 4.5~4.6, 5.1~5.3, and 6.1. Closed book, closed notes, NO calculators.
Nov 6 (Thu): Homework 7 (due Thu, Nov 13)
Section 5.1: #10,18,21(skip d),22(skip c),23,24,25,29. Solution Section 5.2: #4,13,16,19. Solution
Oct 30 (Thu): Homework 6 (due Thu, Nov 6)
Section 4.5: #3,12,14,19,20,21,25,29,30. Solution Section 4.6: #1,2,3,4,6,8,10,16. Solution
Oct 21 (Tue): Solutions to Exam 2 practice problems
Oct 20 (Mon): Solutions to Homework 5 were posted.
Oct 15 (Wed): Solutions to Homework 4 were posted.
Oct 15 (Wed): Suggested problems from Sections 4.2 and 4.3. This is NOT homework.
Section 4.2: #2,3,9,16,22,24,25(skip c,e),27. Solution Section 4.3: #1,2,7,10,14,16,19,23,24. Solution
Oct 15 (Wed): Exam 2 on Thu, Oct 23, will cover Sections 3.1~3.3, 4.1~4.3. Closed book, closed notes, NO calculators.
Oct 7 (Tue): Homework 5 (due Thu, Oct 16)
Section 3.3: #4,6~8,20,22,24. Solution Section 4.1: #1~3,6,8~12,16,18. Solution
Oct 2 (Thu): Homework 4 (due Thu, Oct 9)
Section 3.1: #2,4,10,12,20,22,38. Solution Section 3.2: #1,2,4,15~20,22,26~29,31~36,39. Solution
Sep 18 (Thu): Solutions to Homework 3 were posted.
Sep 17 (Wed): Suggested problems from Sections 1.7 and 2.1~2.3. This is NOT homework.
Section 1.7: #1,4,6,7,10,12,21,27,33,34,35,36. Solution Section 2.1: #1,9,17. Solution
Section 2.2: #2,3,6,9,14,19,32. Solution Section 2.3: #1,2,6,11,15,17,19,27,28. Solution
Sep 14 (Sun): Solutions to Homework 1, 2 were posted. See the link by the homework problems below.
Sep 11 (Thu): Homework 3 (due Thu, Sep 18)
Section 1.5: #1,6,8,11,26,29,30,31,32,34,36. Solution Section 1.6: #5,12. Solution
Sep 11 (Thu): The following website has a useful linear algebra toolkit. Give it a try.
http://www.math.odu.edu/~bogacki/cgi-bin/lat.cgi
Sep 11 (Thu): Remark on the choice of free variables
Sep 4 (Thu): Homework 2 (due Thu, Sep 11)
Section 1.3: #1,5,8,11,21,24,29. Solution Section 1.4: #1,2,4,13,14,25. Solution
Aug 28 (Thu): Homework 1 (due Thu, Sep 4)
Section 1.1: #2,3,13,24,29,32. Solution Section 1.2: #1,2,4,9,14,17,18,21. Solution
Aug 26 (Tue): Welcome to Math 225 N1!