Unit I: Ax = b and the Four Subspaces

Graphs, Networks, Incidence Matrices

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Session Overview

Figure excerpted from ‘Introduction to Linear Algebra’ by G.S. Strang

This session explores the linear algebra of electrical networks and the Internet, and sheds light on important results in graph theory.

Session Activities

Lecture Video and Summary

Suggested Reading

  • Read Section 8.2 in the 4th edition or Section 10.1 in the 5th edition.

Problem Solving Video

Check Yourself

Problems and Solutions

Work the problems on your own and check your answers when you’re done.

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Course Info

Learning Resource Types

theaters Lecture Videos
grading Exams with Solutions
notes Lecture Notes
theaters Recitation Videos
assignment_turned_in Problem Sets with Solutions
laptop_windows Simulations
groups Course Introduction
co_present Instructor Insights