Math 308-sections 505 &506, Spring 2015                                  
Class Announcements

Sunday, May 10

The special office hours on Moday before the finals will take place from 9:15 a.m. till 11:15 a.m. and not as announced before due family reasons.


Wednesday May 6

Solutions of homework assignment #17 are posted here  It also includes at the end (pages 13-14) an useful remark on how to determine the type of the critical point of a linear system without finding the eigenvalues (you need just to analyze the sign of their real parts by looking on signs of the discriminant of the characteristic equation, of the trace and/or of the determinant of the matrix). The figure 9.1.9 on page 497 of the text summarizes nicely these discussions graphically and I strongly recommend to study this figure toward the final.

Tuesday May 5

I will have special office hours before the final

• Tomorrow, Wednesday, from 9:30 a.m. till 1:00 p.m.
• Thursday , from 9:30 a.m. till 3 p.m.
• Monday, May 11  (for section 506 that has test on Monday afternoon) from  noon  to 2:30 p.m.

Some supporting material on the topic of planar phase portrait in the case of complex eigenvalues is posted here


Monday May 4

• Solutions of homework assignment #16 are posted here
•  Some supporting material on the topic of repated eigenvalues and generalized eigenvectors is posted here
  

Saturday May 2
     

• Final exam will take place in  our regular classroom, BLOC 128 according to the schedule posted at http://registrar.tamu.edu/general/finalschedule.aspx#_Spring_2015
•  The  Final Exam  Topics to know are  posted here . Please review carefully this document.
• Homework assignment #17 is posted here. It is not for submission but the material of this assignment is include in the final.
  
• Solutions of homework assignment #15 are posted here

Monday April 27
Homework assignment #16 due Friday , May 1, is posted here

Monday April 20
The submission of homework # 15 is postponed to Friday, April 24

Friday April 17
Homework assignment #15 due Wednesday , April 22, is posted here

Solutions of homework assignment #14 are posted here

Tuesday April 14
Homework assignment #14 due Friday , April 17, is posted here

Thursday April 9

• Exam 3 will take place on Tuesday, April 14, from 7:30 p.m. till 9:00 p.m.
  The exam will take place in H.R. Bright building, room 124 (the same place as exam 1).
  
•  Bring your ID.
• Exam 3 Topics to know are  posted here . Please review carefully this document. In case of class conflict you MUST inform me till Monday, April 13 submitting your official TAMU schedule signed by you
• The special office hours before test 3 will take place from noon till 3 p.m. on Tuesday, April 14 in my office

Monday April 6
The submission of homework # 13 is postponed to Friday, April 10

Wednesday April 1
Homework assignment #13 due Wednesday , April 8, is posted here

Solutions of homework assignment #12 are posted here

Midterm exam 3 will take place on April 14, 7:30-9:00 p.m. More details will be given later.

Saturday 03/28
Homework assignment #12 due Wednesday , April 1, is posted here

Solutions of homework assignment #11 are posted here

Monday 03/23
Homework assignment #11 due Friday , March 27, is posted here

Solutions of homework assignment #10 are posted here

Friday 03/14
Homework assignment #10 due Monday , March 23, is posted here

Monday 03/09

1. Solutions of homework assignment #9 are posted here (note that in problem 3 it is not necessary to make the partial fraction decomposition of two terms separately as I did in this text, it was just more simple)
2. The special office hours before test 2 will take place from noon till 3 p.m. tomorrow in my office.
   

Sunday 03/08

Solutions of homework assignment #8 are posted here (please ignore problem 3 b there at the end, also the following is missing in this solution: in problem 2 a) delta=~-1.19 rad or ~ 68.19 grad and in problem 2 b) delta=~0.24 rad or ~ 14.04 grad)

Wednesday 03/04

• Exam 2 will take place on Tuesday, March 10, from 7:30 p.m. till 9:00 p.m.
  The exam will take place in Chemistry building, room 2104.
  
•  Bring your ID.
• Exam 2 Topics to know are  posted here . Please review carefully this document. In case of class conflict you MUST inform me till Monday, March 9 submitting your official TAMU schedule signed by you.
• Homework assignment #9 due Monday , March 9, is posted here

Tuesday 03/03
1) Please print the worksheet from here with basic properties of Lapalce transform and bring it to the class tomorrow, Wednesday 03/04.
2) I also will start to discuss tmorrow the method of partial fraction decomposition for calculating the inverse Laplace transform and the beemer presentation of the main points of the material is  here,  the handout version (for printing) of the same file is here
3) I also posted some lecture note related to sections 3.3, 3.7, 3.8 here (or go to the course site and click to Lecture notes and enrichment)

Friday 02/27
Homework assignment #8 due Wednesday , March 4, is posted here

Solutions of homework assignment #7 are posted here

Friday 02/20

Homework assignment #7 due Wednesday , February 25, is posted here

Solutions of homework assignment #6 are posted here

Tuesday, February 17
Homework assignment #6 due Friday 02/20 is posted here

Monday, February 16

Solutions of the homework assignment #5  are posted here

Tuesday, February 10

• Homework assignment #5 due Friday 02/13 is posted here;
• Solutions of the homework assignment #4  are posted here.
• Exam 1 will take place on Tuesday, February 17, from 7:30 p.m. till 8:30 p.m.
  The exam will take place in H.R. Bright building, room 124.
  
•  Bring your ID.
• Exam 1 Topics to know are  posted here . Please review carefully this document. In case of class conflict you MUST inform me till Monday, February 16 submitting your official TAMU schedule signed by you

Wednesday 02/04

• Homeworks assignment #4 due Monday , February 9, is posted here
• Solutions of homework assignment #3 are posted here

Friday 01/30

• Homeworks assignment #3 due Wednesday , February 4, is posted here
• Solutions of homework assignment #2 are posted here

Monday 01/26

• Homeworks assignment #2 due Friday , January 30, is posted here
• Solutions of homework assignment #1 are posted here
• Help sessions  will take place on Monday – Thursday 7:30 p.m. – 10:00 p.m. BLOC 117
• Week In Review schedule Wed. 7:30 - 9:30p, BLOC 166

Thursday, 01/22
Homeworks assignment #1 due Monday , January 26, is posted here

Wednesday 01/21

• Welcome to Math 308!
• Calclab Policy: There is no game playing allowed on CalcLab systems. No food, drink, or tobacco products are allowed in this lab class during lectures.