[SoftTalker]

Most/all of my university-level math knowledge is gone, atrophied from never having needed to use any of it professionally. I don't even really recall needing it for any of my CS coursework, honestly. It was just required for the degree.

[smcg]

I used linear algebra to implement PageRank in my Information Retrieval class. I also used it extensively in my AI and ML classes. You can't pass a ML class without a good foundation in linear algebra. Not to mention, discrete mathematics is the fundamental building blocks of CS. Surely you were using algorithms and graphs. I hope you computed an algorithm's efficiency with big O notation. I hope you have used probability before.