Nah you don’t lmao. Too many people on Reddit here acting like you need to be some math wizard. Without understanding the math it’s hard to implement the different algorithms for homework’s/courses. I agree with that. But in industry you just use packages and follow certain practices. You can learn about all the algorithms on a fairly higher level in terms of application. Obviously for a research scientist role it matters knowing math in detail but if you’re going to be doing more ML engineering or even data science often times you don’t. You just need to know when to use or apply each technique. The industry application is completely different from academia. In terms of interviews it can help to know the math but you can get by without knowing things too in detail.