A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass. An illustration of a magnifying glass.

**pre-reqs:** *none* I know who you are. I have seen you before and talked to you before. You are taking introductory physics and you are scared. Why does this have to be so difficult? It seems like ...

Abstract: The mention of "linear algebra" immediately conjures up columns and arrays of numbers. But the relevance of this field goes much beyond recipes for shuffling and combining lists of numbers.