MA-305 Elementary Linear Algebra Spring 1997

Current Announcements

• Course grades in numeric order (with assigned letter grades). Send email to find out the details of your grade.
• Final exam grades in numeric order. You may pick up your graded exam in Erich's office during the afternoons.
• If you would like to find out or check all your homework grades of this semester, please email Wen-shin before May 9.
• If you are using an Unity/Eos/Pams station to view these pages, you might try clicking here to speed up access.

Hyperlinks

Course Syllabus

Peoples' home pages: Erich Kaltofen, Wen-shin Lee

Maple programs for the course

• Row Echolon Form
• File D2mapD2.mpl in Maple directory: color visualization of a linear map from R² to R².
• Least squares experiments
• Linear maps that are rotations in 3-D space
• Gram-Schmidt and modified Gram-Schmidt algorithms
• Differential equation examples

Midterm and final examinations

• First mid-semester examination.
• Second mid-semester examination.
• Final examination.

Homeworks

• Homework 1, solution,due Tuesday, January 21 in class.
• Homework 2, solution, due Tuesday, February 3 in class.
• Homework 3, due Thursday, February 20 in class.
• Homework 4, solution, due Tuesday, March 4 in class.
• Homework 5, solution, due Tuesday, March 25 in class.
• Homework 6, solution, due Tuesday, April 1 in class.
• Homework 7, solution, due Tuesday, April 15 in class.
• Bonus Homework 8, solution, due Thursday, April 24 in class.

Class notes and additional links

• Maple hints.
• Directory of all sessions (including the *.ms files).
• Maple session on April 10.
• Maple session on April 1.
• Maple session on February 20.
• Maple session on February 18.
• Maple session on February 11.
• Maple session on January 30.
• Maple session on January 28.
• Maple session on January 21.
• Maple session on January 16.
• Maple session on January 9.

Old midterm and final examinations (Spring 1996)

• First mid-semester examination.
• Second mid-semester examination.
• Final examination.

Computer Help Resources

• NCSU Computing Center
• Eos/Unity Tutor Page
• Getting Started with Z-Mail
• Netscape Handbook
• Computing Center Consultant's Home Page

Old Announcements

• Last minute help. Wen-shin will host an extra office hour, 2-3pm, on Thursday in WI 428.
• The first exam is on Thursday. I have posted the solutions of last year's first exam. Please note that the exam was for MA 405 and therefore is harder than the one given tomorrow. Furthermore, the topics of some questions was not covered and is therefore not on the exam.
• David Chapman has convinced me that the instrument on the back side of the German 10 DM bill is indeed a heliotrope, as he has suggested earlier. Follow the bio link for Gauss from here. Thanks, Dave, for correcting me on that.
• For students who did an interesting term project in Data Structures last Fall: Call for Papers for The Sixth Annual North Carolina State University Undergraduate Research Symposium.
• URL country code suffixes (courtesy Dave Chapman).
• Homework 3 is due on Thursday.
• The first midterm exam is graded (grades in sorted order). You may pick up your exam tomorrow, Thursday, February 20, from 1pm-4pm in Harrelson 150. If you like to know your grade only, you may send email to kaltofen@eos.ncsu.edu.
• Homework 4 is due on Tuesday, March 4. Note that the first line covers four problems [22, 23, 24, 25].
• K's pre-exam office hours: Wednesday, March 19, 2-3:30pm. Thursday, March 20, 1-3pm. Both in Harrelson 150.
• Thursday, March 20, second mid-semester exam, during class. You may bring two 8.5'x11' sheets of paper with notes.
• The second midterm exam is graded (grades in sorted order).
• Homework 5 is due on Tuesday, March 25. However, it may be a good idea to do these problems as practice for the exam on Thursday.
• The directory for the second exam last year (MA 405) now includes a solution. Some of the material has not been covered in class yet (Problems 1c, 1d, 1e, 4, 5). Certainly, Problem 5 will be covered in class tomorrow and Problem 4 will not.
• An online linear algebra book (link courtesy Brad Fowler).
• Last problem in homework 7. John Ganaway brought to my attention that the fit with 5 data points leads to a false model (yielding a negative number of comparisions for n =10,000). I have added one data point to fix this problem with my experiment.
• Homework 7 is due on Tuesday, April 15.
• Intermediate cummulative course grades in sorted order.
• With the author's permission, I have downloaded Professor Mark Sapir's online linear algebra text book. I would welcome any comments about using these notes in place of our textbook in the Fall. Note the the Maple buttons or not operational yet.
• Teaching evaluations will be held on Tuesday, April 22, during the last 15 minutes of class (5:05pm-5:20pm).
• Bonus homework 8 is due on Thursday, April 24.
• Maple animations for explaining rotations.
• Homework solutions are now posted.
• There will be a review session at 4pm on Monday, April 28, in Harrelson Hall 210.
• Wen-shin will host the following extra office hours for the final:
  • 1-2pm, Friday, April 25
  • 1-2pm, Monday, April 28
  • 9:30-11:00am, Tuesday, April 29

  The solution to last year's final examination is now posted. The material necessary to answer questions 1b, 1c, and 5b will not be covered in MA 305. No question about linear differential equations, like Problem 4, will be given on the MA 305 final examination.

  The final examination is scheduled in our class room on Tuesday, April 29, 1pm-4pm. You may bring three 8.5'x11' sheets of paper with notes.