I want to strengthen my application for the next cycle of economics phd applications by taking math courses. My current math background: solid grades (A) in a few undergraduate courses that basically cover Chiang's textbook taken a decade ago (I am in my early 30s) and an 800 score in the math part of the GRE.
This fall I will enroll in a real analysis class at a local university (I will prepare for that through self-study). This summer, given my crazy work schedule, I have two options: an online linear algebra course at EPGY or a matrix algebra class at a local university, which will cover: systems of linear equations, matrices, determinants, introduction to vector spaces and linear transformations, applications. I only have time for one of the two options.
Which would work best for my application? Any advice welcome!