Welcome to Math 218D! I will post almost all course materials on this page. Please check back for information about homework assignments, exams, and additional resources. You should probably read the syllabus.
Jump to Week: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
M  10  –noon  Gross Hall 105 
Th  1:30  –2:30pm  Perkins LINK 079 (Seminar 3) 
W  1:30  –3:30pm  Gross Hall 324 
Th  12  –1pm  Gross Hall 318 
Lecture  Instructor  Location  Time 

218D1 (001)  Joe Rabinoff  Math & Physics 130  TTh 10:15–11:30am 
218D1 (002)  Alex Wagner  Math & Physics 130  TTh 3:30–4:45pm 
Problem Session  Instructor  Location  Time 
218D1 (01D)  Eylem Yildiz  ReubenCooke 127  F 8:30–9:45am 
218D1 (02D)  Eylem Yildiz  Social Sciences 119  F 10:15–11:30am 
218D1 (03D)  Eylem Yildiz  Math & Physics 235  F 12:00–1:15pm 
218D1 (04D)  Eylem Yildiz  ReubenCooke 127  F 3:30–4:45pm 
Access Gradescope by clicking on the tab in Sakai
For practicing row reduction when you're allergic to fractions.
A complement to Strang's book written by Joe.
Topic and Section  Materials  Homework  

Week 1: 1/3  Introduction 
Joe's Notes ●
Alex's Notes Demo: Best fit ellipse Demo: Rabbit population Demo: A Plane Demo: Two Planes 
Homework #1 Due 1/10 11:59pm Solutions Note: HW#1 covers the recorded lecture. 

Vectors and Matrices (Ch. 1, 2.4, 2.7) 
Joe's Notes Recorded: Watch on WarpWire (on Sakai) before the second lecture. 

Problem Session  
Week 2: 1/10  Solving Equations: Elimination (2.2)  Joe's Notes ● Alex's Notes 
Homework #2 Due 1/17 11:59pm Solutions 

Gauss–Jordan Algorithm (2.2) 
Joe's Notes ●
Alex's Notes Gauss–Jordan Slideshow Rabinoff's Reliable Row Reducer 

Problem Session  Worksheet and Solutions  
Week 3: 1/17  Inverse and Elementary Matrices (2.3, 2.5)  Joe's Notes 
Homework #3 Due 1/24 11:59pm 

LU Decomposition (2.6)  Joe's Notes  
Problem Session  Worksheet  
Week 4: 1/24  Parametric Form 
Demo: Parameterized Line Demo: Parameterized Plane 
Homework #4 Due 1/31 11:59pm 

Spans (3.2, 3.3)  
Problem Session  
Week 5: 1/31  Subspaces (3.1, 3.2) 
Homework #5 Due 2/9 11:59pm 

Linear Independence and Basis (3.4, 3.5)  
MIDTERM 1  
Week 6: 2/7  Fundamental Subspaces (3.4, 3.5) 
Homework #6 Due 2/14 11:59pm 

Orthogonal Complements (3.5, 4.1)  
Problem Session  
Week 7: 2/14  The Big Picture (3.5, 4.1) 
Homework #7 Due 2/21 11:59pm 

Orthogonal Projections (4.2)  
Problem Session  
Week 8: 2/21  Least Squares (4.3) 
Homework #8 Due 2/28 11:59pm 

Gram–Schmidt and QR (4.4)  
Problem Session  
Week 9: 2/28  Determinants I (5.1, 5.3) 
Homework #9 Due 3/14 11:59pm 

Determinants II (5.2)  
MIDTERM 2  
SPRING BREAK  
Week 10: 3/14  Eigenvalues and Eigenvectors (6.1) 
Homework #10 Due 3/21 11:59pm 

Diagonalization (6.2)  
Problem Session  
Week 11: 3/21  Complex Numbers; Euler's Formula (9.1) 
Joe's Notes Recorded: Watch on WarpWire (on Sakai) before Tuesday's lecture. 
Homework #11 Due 3/28 11:59pm 

AM/GM and Diagonalizability (6.2)  
Systems of ODEs (6.3)  
Problem Session  
Week 12: 3/28  Spectral Theorem (6.4) 
Homework #12 Due 4/4 11:59pm 

LDL^{T}; Quadratic Optimization (2.7, 6.5)  
Problem Session  
Week 13: 4/4  Quadratic Optimization II (6.5) 
Homework #13 Due 4/13 11:59pm 

SVD: Outer Product Form (7.1, 7.2)  
MIDTERM 3  
Week 14: 4/11  SVD: Matrix Form (7.3) 
Homework #14 Due 4/19 11:59pm 

PCA I (7.3, 7.4)  
Problem Session  
4/19  PCA II (7.3) 
Homework #15 (Not collected) 

Final exams:
