Linear Algebra, Math 330, Kriloff
Schedule and Assignments

This is the schedule of sections that will be discussed in class with suggested embedded exercises to practice before class and due dates of homework assignments.
Check back for updates.
 
Tuesday
Thursday
1/16  1.1 - One Equation in n Unknowns
Sugg: 1.1 #1
1/18  1.2 - Matrices and Systems of Equations
         1.3 - Solving Systems in Reduced Form
Sugg: 1.2 #2-5, 1.3 #2, 3, 5, 6, 8
1/23  1.4 - Gaussian Elimination
Sugg: 1.4 #2-4, 7-9
1/25  1.5 - Elementary Matrices
Sugg: 1.5 #1-6, 8
Homework #1 Due 
1/30  1.6 - Inverses and Transposes
Sugg: 1.6 #1-4, 6, 7, 9, 10
2/1    1.7 - Determinants
Sugg: 1.7 #1-3, 5, 10-12
2/6    1.7, 1.8 - Computational Notes
Sugg: 1.8 #1-2
2/8    1.8, 1.9 - Applications
Sugg: 1.9 #1, 2, 4, 5
Homework #2 Due
2/13  2.1 - Vector Spaces and Subspaces
Sugg: 2.1 #1-5
2/15  2.1 - Subspaces
Sugg: 2.2 #1, 2a,b,d, 3
2/20  2.2 - Span and Linear Independence
Sugg: 2.2 #4, 6, 7, 8
Homework #3 Due
2/22  2.2 - Basis and Dimension 
Sugg: 2.2 #4, 6, 7, 8
Exam 1 Out
2/27  2.3 - Linear Transformations
Sugg: 2.3 #1, 3, 4
Exam 1 Due
3/1 
3/6   2.4, 2.5 - Isomorphism, Linear Transformations and Subspaces
Sugg: 2.4 #1-3, 6;  2.5 #2, 3, 6, 7, 8, 10
Homework #4 Due
3/8     2.5, 2.6 - Subspace Construction
Sugg: 2.5 #2, 3, 6, 7, 8, 10, 
         2.6 #2-4
3/13  2.7 - Linear Transformations and Matrices
Sugg: 2.7 #4, 5, 7-9, 11-13
3/15 No class (in exchange for the take-home exams)
Feel free to use the class time to meet in groups to discuss material or homework problems together.
3/27  2.7 - Linear Transformations and Matrices
Sugg: 2.7 #4, 5, 7-9, 11-13
3/29  3.1 - Orthogonalization and QR Decomposition
Sugg: 3.1 #1, 2, 4-6
Homework #5 Due
4/3    3.2 - Orthogonal Subspaces
Sugg: 3.2 #1, 3, 4
4/3    3.3 - Orthogonal Projections
Sugg: 3.3 #2, 3, 4
4/10   3.3, 3.4 - Least Squares
Sugg: 3.3 #2, 3, 4
         3.4 #2
Homework #6 Due
4/12  3.5 - Data Fitting
Sugg: 3.5 #1, 3, 4-6
Exam 2 Out
4/17 4.1 - Eigenvalues and Eigenvectors
Exam 2 Due
4/19   Conjectures
Sugg: 4.1 #3-5
MEET IN GARRISON 713 COMPUTER LAB
4/24  4.2 - Diagonalizability
Sugg: 4.2 #1, 3, 4, 6
Homework #7 Due
4/26  4.3 - Complex Vectors and Matrices
Sugg: 4.3 #1, 2, 4-9
5/1    5.1 Complex Vector Spaces
Sugg: 5.1 #2, 5
5/3    5.2 Spectral Theorem
Sugg: 5.2 #1, 3, 4
Homework #8 Due
5/8  4.5 - Applications to Differential Equations
 
5/10 Applications
Homework #9 Due

Here are the homework assignments.
 
Homework 1
(1.1-1.4)
Due Thurs. 1/25
Section 1.10: 4, 8, 12, 16, 18, 22, 24, 54, 58
Also prove the following:
1. For any vectors a and v and any scalar c, <a,cv>=c<a,v>.
2. <x,x> is greater than or equal to 0 and equals 0 if and only if x=0.
3. For any two matrices A and B of the same size and any scalars c and d,
    c(A+B)=cA+cB, and (c+d)A=cA+dA.
4. If A is any m by n matrix and e_i is the vector with a 1 in the i-th position 
    and 0 in all other positions, then Ae_i=A^i (the i-th column of A).
Homework 2
(1.5-1.7)
Due Thurs. 2/8
Section 1.10: 14, 29, 42, 44, 47, 50-52, 56, 68, 74, 76, 82, 84, 86
(Suggested: 34, 36, 38, 65, 69, 71)
Also prove the following:
5. The product of two upper triangular matrices is upper triangular.
6. The transpose of the product of n matrices is the product of the transposes 
    in the opposite order.
Homework 3
(1.8-2.1)
Due Tues. 2/20
Section 1.10: 89, 90, 96, 104, 108, 110
Section 2.9: 1, 4, 6, 9, 11, 12, 20
Homework 4
(2.2-2.3)
Due Tues. 3/6
Section 2.9: 14, 17, 23, 26a, 29, 32, 34, 36a,d, 37b, 38, 46, 51a,b,c
Also, include the basis parts of 1 and 6, and 11b from the previous assignment.
Homework 5
(2.4-2.7)
Due Thurs. 3/29
Section 2.9: 41, 51d,e, 58, 59, 66, 73, 76, 79, 84, 86, 92, 95, 98, 101, 104, 108, 109
Homework 6
(3.1-3.2)
Due Tues. 4/10
Section 3.7: 3, 5, 6, 11, 13, 16 (use the inner product given above on p. 225), 21, 22, 32, 34, 37, 38
Homework 7
(3.3-3.5)
Due Tues. 4/24
Section 3.7: 1, 12, 18 (use the inner product given above on p. 225), 39, 43a,b,c (explain c), 47, 52, 59, 64
Homework 8
(4.1-4.3)
Due Thurs. 5/3
Section 4.6: Do 3, 6 by hand, Do 11, 14 by Maple, 16-18, 20, 24, 27, 31, 32, 42, 45
Prove that if A is diagonalizable and A is similar to B, then B is diagonalizable.
Homework 9
(5.1-5.2)
Due Thurs. 5/10
Last Homework Assignment:
Section 4.6: 8 (by hand), 29, 37, 39
Section 5.6: 8-10 (individual steps may be done in Maple), 21, 22, 25a,c