Math 781: Matrices and Data

Welcome! You have found the homepage of the Spring 2025 manifestation of Math 781.

Schedule

Quizzes and problem sets are distributed through gradescope.

Timeframe Topic Resources
Week 0 Welcome!
Week 1 Matrices and Vectors
Adjectives ⟵ complete at home!
Matrix-Vector Products
Week 2 Digraphs
Vector Geometry
Matrix Multiplication ⟵ covered in week 3
Week 3 Row Echelon Forms
Linear Systems
Week 4 Gauss-Jordan Elimination
Week 5 Nonsingular Matrices
EA=R Factorizations
PA=LU Factorizations
Week 6 Eigenvalues
Null Spaces
Week 7 Column Spaces
The Four Fundamental Subspaces
Linear Independence
Week 8 Bases
Dimension
Orthogonality
Week 9 Projections
Least Squares
Week 10 A=QR Factorizations
The Gram-Schmidt Algorithm
Determinants I
Week 11 Determinants II
Complex Numbers
Week 12 Polynomial Algebra
The Characteristic Polynomial
Week 13 Diagonalization
The Spectral Theorem
Week 14 Definiteness
Singular Value Decomposition