## Math 129A: Linear algebra I

### Announcements:

• This page shows what the web page for this class was like, except that answers have been removed.

• If you took this class, and you'd like to know your grade on the final exam, e-mail me at hsu@math.sjsu.edu.

### Course notes:

Definitions, theorems, and proofs, Writing mathematics in paragraph style.

### Topics for exams:

Exam 1, Exam 2, Exam 3, Final.

### Sample exams:

Exam 1, Exam 2, Exam 3, Final.

Practice means the practice problems at the beginning of each section; if no numbers are given, then all practice problems are to be done.

 HW Due date Problems to be done but not turned in Problems to be turned in SA01 Fri Jan 25 (1.1) 1; practice. (1.1) 4, 8, 12, 16, 18. SA02 Wed Jan 30 (1.2) 1; practice. (1.2) 2, 12, 18, 26, 30, 34. SA03 Fri Feb 01 (1.3) 1; practice. (1.3) 6, 8, 16, 20, 26, 30, 36. SA04 Wed Feb 06 (1.4) 1; practice. (1.4) 6, 10, 14, 18, 22, 28. SA05 Fri Feb 08 (1.5) practice 2, 3; (1.6) 1, practice. (1.5) 20; (1.6) 6, 16, 20, 26, 28. SA06 Mon Feb 18 (1.7) practice 1. (1.6) 36; (1.7) 4, 8, 12, 16, 22. SA07 Wed Feb 20 (1.7) 1, practice 2. (1.7) 32, 36; (pp. 80-81) 22, 34, 44, 50. SA08 Mon Feb 25 (2.1) practice. (2.1) 4, 6, 12, 18, 22, 28. SA09 Wed Feb 27 (2.1) 1; (2.2) practice 1. (2.1) 42, 48; (2.2) 2(a,b only). SA10 Mon Mar 04 (2.3) practice, 1. (2.3) 6, 10, 12, 14, 16, 32. SA11 Wed Mar 06 (2.4) practice, 1, 23. (2.4) 4, 6, 10, 18, 24, 26. SA12 Fri Mar 08 (2.6) 1, practice 1, 3. (2.6) 4, 6, 10, 14, 28, 32 (28, 32: not linear) SA13 Wed Mar 13 (2.6) practice 2; (2.7) 1, practice. (2.6) 20; (2.7) 12, 16, 32, 40, 56. SA14 Wed Mar 20 (3.1) practice. (3.1) 4, 16, 20, 24, 26. SA15 Fri Mar 22 (3.2) 1, practice. (3.2) 6, 12, 18, 22, 28, 38. SA16 Mon Apr 08 (4.1) 1, practice. (4.1) 14, 18, 20, 24, 30, 48. SA17 Wed Apr 10 (4.2) 1, practice. (4.2) 4, 14, 16, 24, 28, 32. SA18 Mon Apr 15 (4.3) 1, practice. (4.3) 4, 8, 10, 20, 28, 34. --- (none) More about dimension (none) SA19 Fri Apr 19 (5.1) 1, practice. (5.1) 4, 10, 18, 22, 28, 32. SA20 Mon Apr 22 (5.1) 37; (5.2) practice. (5.1) 24, 38; (5.2) 8, 12, 16. SA21 Wed Apr 24 (5.2) 1, 3. (5.2) 4(a)(c), 20, 24, 32, 36. SA22 Wed May 01 (5.3) practice. (5.3) 10, 12, 14, 18, 22. SA23 Fri May 03 (5.3) 1, 3. (5.3) 4, 26, 30, 38, 46. SA24 Wed May 08 (5.5) practice 1, 2, 3. (5.5) 12(a)(b), 28, 30, 32, 36. SA25 Fri May 10 (6.1) 1, practice. (6.1) 6, 12, 16, 28, 32, 34. SA26 Wed May 15 (6.2) 1, practice. (6.2) 6, 10, 16, 18, 22, 28.

### Paragraph homework:

Click on the number or title of any highlighted homework to download it. (Files are in Adobe Acrobat PDF format, except computer projects, which are in Microsoft Word.)

 HW Due date Title P01 Mon Jan 28 Definitions and theorems P02 Mon Feb 04 Numbers of solutions of systems of linear equations P03 Mon Feb 11 Which span is bigger? P04 Fri Feb 22 Linear dependence and independence P05 (CP07) Fri Mar 01 Elementary analysis of the spotted owl population P06 Mon Mar 11 Inverses; linear transformations P07 (CP08) Fri Apr 05 Visualizing linear transformations P08 Fri Apr 12 Subspaces P09 Wed Apr 17 Basis and dimension P10 (CP24) Mon May 06 Using eigenvalues to study spotted owls P11 Mon May 13 Applications of eigenvalues