MATH 251- Matrix Algebra for Engineers
Announcements
Mar 21: Test 3 remains scheduled for Friday, April 5. However, the cut-off for that test has been changed to sec 5.2 (instead of 5.3). Section 5.3 onwards will not be covered by Test 3 but will be tested on the final exam along with everything else.
Mar 8: This is a reminder that Wednesday, March 13 is the last day you can withdraw from (or switch to audit in) most Winter 2019 courses (including MATH 251).
Feb 22: The Winter 2019 final exam schedule has been posted on Camlink. See below for details of the MATH 251 final exam.
Feb 16: My regular office hours are cancelled during the Reading Break (February 19-22) due to various meetings and appointments. Please email me if you have any questions or if you wish to book an appointment to meet in person.
Feb 11: Camosun college will be closed on Tuesday, February 12 due to the snow. Upon a return to classes, we will resume coverage of sec 3.4 on LU factorizations.
Feb 4: Recent light snow in Victoria reminds us of the possibility of inclement weather. In the event of severe weather conditions, the college may close. Information about college closures due to severe weather can be found here.
Jan 16: This is a reminder that Monday, January 21 is the fee deadline and the deadline for dropping classes with a full tuition refund.
Homework Problems
- Section Exercises: A list of recommended practice problems is available here. The exercises themselves are available here in a password-protected PDF file (3.2MB). The password will be provided in class.
- Chapter Review Exercises: For extra practice, a list of recommended chapter review problems is available here. These exercises can be found in a PDF file, having the same password, that is available here.
- Exercise Answers: Answers to most odd-numbered textbook exercises (except for answers to Appendix exercises) can be found at the back of the textbook or in the Student Solutions Manual, which contains more detailed solutions. Answers have not been included in the PDF files above because doing so would have exceeded the amount allowable for "fair use" under copyright rules. Two copies each of the textbook and solutions manual can be found on reserve at the Lansdowne library (in addition to copies at Interurban). You can view the reservation status of these books by searching for MATH251 (no spaces) on the library's website.
Term Tests
Test | Sections of Textbook | Test Date |
Test 1 Solutions |
1.1 The Geometry and Algebra of Vectors 1.2 Length and Angle: The Dot Product 1.3 Lines and Planes Exploration: The Cross Product 2.1 Introduction to Systems of Linear Equations 2.2 Direct Methods for Solving Linear Systems 2.3 Spanning Sets and Linear Independence 2.4 Applications |
Friday, February 8 |
Test 2 Solutions |
3.1 Matrix Operations 3.2 Matrix Algebra 3.3 The Inverse of a Matrix 3.4 The LU Factorization 3.5 Subspaces, Basis, Dimension, and Rank 3.6 Introduction to Linear Transformations |
Friday, March 8 |
Test 3 Solutions |
Appendix C – Complex Numbers 4.1 Introduction to Eigenvalues and Eigenvectors 4.2 Determinants Exploration: Geometric Applications of Determinants 4.3 Eigenvalues and Eigenvectors of n×n Matrices 4.4 Similarity and Diagonalization 5.1 Orthogonality in R^{n} 5.2 Orthogonal Complements and Orthogonal Projections |
Friday, April 5 |
Note: The
final exam will also cover the following sections: 5.3 The Gram-Schmidt Process and the QR Factorization 5.4 Orthogonal Diagonalization of Symmetric Matrices 7.3 Least Squares Approximation |
Final Exam
The MATH 251 final exam will be a comprehensive, three hour exam and it will take place on Thursday, April 18 from 8:30-11:30am in Young 217/219.
You must write the final exam at the scheduled time as per Camosun College's policy on final examinations.
A set of practice questions (created by Gilles Cazelais) is available in addition to the textbook homework problems.
My office hours (E260) during the final exam period are:
- Monday, April 15, 12:00pm-1:00pm
- Tuesday, April 16, 12:00pm-1:00pm
- Wednesday, April 17, 12:00pm-1:00pm
- Thursday, April 18, 12:00pm-1:00pm
The Math Lab (E224) is also open during the exam period with the following hours:
- Monday-Thursday, 9:00am-8:15pm (excluding Easter Monday)
- Friday, 9:00am-4:30pm (excluding Good Friday)
- Saturday (April 13 and 20), 10:00am-2:00pm
MATLAB/Octave
- MATLAB
- GNU Octave (a free MATLAB clone)
- Octave Online (a free web-based UI for Octave)
- Linear Algebra with MATLAB (PDF handout created by Gilles Cazelais)
Links to other MATH 251 Webpages
Links to Textbook Resources from Publisher
Miscellaneous Links
- Right Hand Rule Graphic of the Cross Product (Exploration: The Cross Product)
- Geometric Interpretation of the Cross Product (Exploration: The Cross Product)
- Solutions of 3x3 Systems (3 Planes in R^{3}) (Sec 2.2)
Documents
- MATH 251 Course Outline
- Properties of Vectors (Sec 1.1-1.2)
- Methane (Sec 1.2)
- Equations of Lines and Planes (Sec 1.3)
- Row Echelon Form (Sec 2.2)
- Spanning Sets and Linear Independence of Vectors (Sec 2.3)
- Applications of Systems of Linear Equations (Sec 2.4)
- Properties of Matrices (Sec 3.2)
- Spanning Sets and Linear Independence of Matrices (Sec 3.2)
- Properties of Invertible Matrices (Sec 3.3)
- Elementary Matrices (Sec 3.3)
- Subspaces and Bases (Sec 3.5)
- Linear Transformations (Sec 3.6)
- Eigenvalues and Eigenvectors (Sec 4.1)
- Properties of Determinants (Sec 4.2)
- Diagonalization (Sec 4.4)
- Orthogonality (Sec 5.1-5.2)
- Gram-Schmidt Process (Sec 5.3)
- Symmetric Matrices and Orthogonal Diagonalization (Sec 5.4)
- Least Squares Approximation (Sec 7.3)