MATH 544

Web page for Math 544 (and CPT_S 531) Matrix Computations, Spring 2018 MWF 9:10 - 10 am , SPARK 233

Michael Tsatsomeros, Neill Hall 229
Office phone: 335-3144
E-mail: tsat at wsu.edu
Office hours: TTh 1:30: - 2:30 pm, and by appointment

Here is the syllabus.

Updated April 23, 2018

Announcements

• The final will take place in our regular classroom on May 1, 2018, 8-10 am. Material and other useful information about this test will be given on the last week of classes. A review will be held in the last day of classes.

• Here are the solutions to the midterm exam.

• The midterm exam will take place in class on Friday March 9, 2018.
Material: 1.1-1.4, 1.7, 1.8, 2.1-2.5, 2.7, 3.1-3.5.
More information about the exam will be given in class on March 5. Here is a practice midterm exam.

• Regarding Exercise 2.4.4 on Assignment 2, try generating the matrix A (first two lines of provided code in 2.4.4) by the commands

r = zeros(1,n); % zero vector with n entries
r(1:2) = [2, -1];
T = toeplitz(r); % Toeplitz matrix
E = speye(n); % nxn identity matrix, stored sparsely
A = kron(T,E) + kron(E,T); % Kronecker sum
% A is the discrete Laplacian in the standard ordering
p = symamd(A); % permutation for the symamd ordering
A = A(p,p); % discrete Laplacian in symamd ordering

This should work in octave and matlab. It avoids using delsq and numgrid which only work in matlab.

• We will use Matlab (available in the math department computer labs) or GNU Octave (a free alternative to Matlab) for linear algebraic and other computations. There are many freely available resourses to familiarize yourselves with this software. Here are some options to get you started:
Matlab Primer, Matlab Guide (by Xenofontos), Octave Tutorial (by Long), and these Matlab/Octave basics.

• Safety on Campus: The University has developed resources and a Campus Safety Plan for students, faculty and visitors. Also become familiar with the WSU ALERT site.

• Assignment 1: 1.1.20, 1.2.4, 1.3.26, 1.7.10, 1.7.18, 1.7.35, 1.7.36, 1.7.50 (a). Solutions (thanks Jakob).

• Assignment 2: 1.8.4, 1.8.9, 1.8.11, 2.1.23, 2.1.30, 2.2.15, 2.4.4. Solutions (thanks Jakob).

• Assignment 3: 2.5.10, 2.6.5, 2.6.6, 3.1.5 (a), (b), 3.2.3, 3.2.4, 3.2.8. Solutions (thanks Jakob).

• Assignment 4 : 3.2.26, 3.2.52, 3.3.7, 3.5.1, 3.5.2, 3.5.23. Solutions (thanks Jakob).

• Assignment 5: 4.1.5, 4.2.3, 4.2.8, 4.2.12, 4.3.9 (a)-(c), 4.3.14. Solutions (thanks Jakob).

• Assignment 6 : 5.2.14, 5.2.18, 5.3.8, 5.3.10 (a)-(b), 5.4.8, 5.4.42. Solutions (thanks Jakob).
Disclaimer I reserve the right to amend and/or change the assigned problems and due dates. Such an amendment will only occur with reasonable prior notice given in class and by updating this page. So, if you miss a class, please check this page for updates.

Visit my homepage or send your comments via e-mail to tsat at wsu.edu