Sections, concepts, and problems

3.3. Systems of linear equations - theoretical aspects. How to represent a system of linear equations as a single matrix equation, consistent vs. inconsistent systems, homogeneous vs. nonhomogeneous systems, how to get the solution set of a nonhomogeneous system from the solution set of the corresponding homogeneous system and a single nonhomogeneous solution (note: cosets in disguise!), what invertibility has to do with all this, how to tell if a nonhomogeneous system is consistent, and a wild economics application.
1, 2ace, 3ace, 4, 5, 8 (see example 6), 9, 10

Other Chapters

Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6