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
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

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
and Solutions

Week 4: 1/24 
Parametric Form 
Joe's Notes
Demo: Parameterized Line
Demo: Parameterized Plane

Homework #4
Updated 1/26
Due 1/31 11:59pm

Spans (3.2, 3.3) 
Joe's Notes
Demo: A vector
Demo: Scalar multiplication
Demo: Vector addition
Demo: Vector subtraction
Demo: Linear combinations of two vectors in R^{2}
Demo: Linear combinations of two vectors in R^{3}
Demo: Linear combinations of three vectors in R^{3}
Demo: Span of 1 vector in R^{2}
Demo: Span of 2 vectors in R^{2}
Demo: Span of 1 vector in R^{3}
Demo: Span of 2 vectors in R^{3}
Demo: Span of 3 vectors in R^{3}
Demo: Column Picture for Consistency: Consistent
Demo: Column Picture for Consistency: Inconsistent
Demo: Row/column picture: parallel lines
Demo: Row/column picture: sometimes inconsistent

Problem Session 
Worksheet
and Solutions

Week 5: 1/31 
Subspaces (3.1, 3.2) 
Joe's Notes
Demo: Column and Null Space

Homework #5
Due 2/9 11:59pm

Linear Independence and Basis (3.4, 3.5) 
Joe's Notes
Demo: Coplanar vectors
Demo: Redundant parameterization
Demo: Linearly dependent vectors
Demo: Linearly independent vectors
Demo: Linear (In)dependence of 1 vector
Demo: Linear (In)dependence of 2 vectors
Demo: Linear (In)dependence of 3 vectors
Demo: Linear Dependence of 3 vectors in R^{2}

MIDTERM 1 
Practice Midterm
and Solutions
Midterm
and Solutions

Week 6: 2/7 
Fundamental Subspaces (3.4, 3.5) 
Joe's Notes
Demo: Ranknullity: n=3, r=0
Demo: Ranknullity: n=3, r=1
Demo: Ranknullity: n=3, r=2
Demo: Ranknullity: n=3, r=3

Homework #6
Due 2/14 11:59pm

Orthogonal Complements (3.5, 4.1) 
Joe's Notes
Demo: Closest vector to b
Demo: An orthogonal complement in R^{3}
Demo: An orthogonal complement in R^{3}

Problem Session 
Worksheet
and Solutions

Week 7: 2/14 
The Big Picture (3.5, 4.1) 
Joe's Notes
Demo: Orthogonal complements in R^{2}

Homework #7
Due 2/21 11:59pm

Orthogonal Projections (4.2) 
Joe's Notes
Demo: Projection onto a line
Demo: Projection onto a plane
Demo: Decomposition relative a line
Demo: Decomposition relative a plane

Problem Session 
Worksheet
and Solutions

Week 8: 2/21 
Least Squares (4.3) 
Joe's Notes
Demo: LeastSquares
Demo: Bestfit line
Demo: Bestfit parabola
Demo: Bestfit trigonometric function
Demo: Bestfit ellipse
Demo: Bestfit ellipse: what is minimized?

Homework #8
Due 2/28 11:59pm

Gram–Schmidt and QR (4.4) 
Joe's Notes
Demo: Projection formula

Problem Session 
Worksheet
and Solutions

Week 9: 2/28 
Determinants I (5.1, 5.3) 
Joe's Notes

Homework #9
Due 3/16 11:59pm

Determinants II (5.2) 
Joe's Notes
Supplement: cofactor matrix

MIDTERM 2 
Practice Midterm
and Solutions
Midterm
and Solutions

SPRING BREAK

Week 10: 3/14 
Eigenvalues and Eigenvectors (6.1) 
Joe's Notes
Demo: Rabbits Multiply
Demo: Eigenspaces of a flip
Demo: Eigenspaces of a shear
Demo: Eigenspaces of a rotation
Demo: Eigenspaces of the rabbit matrix
Demo: Eigenspaces of a 3x3 matrix
Demo: Eigenspaces of a projection matrix

Homework #10
Due 3/23 11:59pm

Diagonalization (6.2) 
Joe's Notes

Problem Session 
Worksheet
and Solutions

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 3/30 11:59pm

AM/GM and Diagonalizability (6.2) 
Joe's Notes
Supplement: Proof of the AM≥GM theorem
Dynamics demos:
AM/GM demos:

Systems of ODEs (6.3) 
Joe's Notes

Problem Session 
Worksheet
and Solutions

Week 12: 3/28 
Spectral Theorem (6.4) 
Joe's Notes
Demo: Eigenspaces of a 3x3 symmetric matrix
Demo: Eigenspaces of a 3x3 symmetric matrix (GM=2)
Demo: Dynamics of a 2x2 symmetric matrix

Homework #12
Updated 4/3 (fixed typo in #16)
Due 4/6 11:59pm

LDL^{T}; Quadratic Optimization (2.7, 6.5) 
Joe's Notes
Supplement: LDL^{T} and Cholesky

Problem Session 
Worksheet
and Solutions

Week 13: 4/4 
Quadratic Optimization II (6.5) 
Joe's Notes

Homework #13
Due 4/15 11:59pm

SVD: Outer Product Form (7.1, 7.2) 
Joe's Notes

MIDTERM 3 
Practice Midterm
and Solutions
Midterm
and Solutions

Week 14: 4/11 
SVD: Matrix Form (7.3) 
Joe's Notes

Homework #14
Due 4/20 11:59pm

PCA I (7.3, 7.4) 
Joe's Notes

Problem Session 
Worksheet
and Solutions

4/19 
PCA II (7.3) 
Joe's Notes

Homework #15
(Not collected)


Final exams:
218D1 (001):  Wednesday, 4/27, 9am–noon 
218D1 (002):  Friday, 4/29, 7–10pm 

Practice Final
and Solutions
