I failed calculus the first time I took it. It was a combination of my having too easy a time in high school that I did not have good study habits and a visiting professor who was so unintelligible that the college replaced him after a few weeks. Higher is needed by computer programmers when they are going to convert a client that uses higher math idea into code. In my close over 30 years of coding I've never needed to code anything beyond algebra and that was in cooperation with a math major/computer minor who did the math while I did everything else. The reality is, even though I took a number of higher level math courses in order to get my degree in computer science, I only remember on bit where I saw how to convert certain math functions into a code type would possibly come in handy. I'd still recommend higher level math for anyone working with graphics or engineering, but that's more to give you a sanity check when looking at the results of testing to ensure the libraries you are referencing are working correctly and you are correctly accessing them. For 99%+ of coders out there you won't need much beyond the math used by regular finance people. I honestly don't know what "maths" the quants use for the stock market, but it might be more exotic and in line with dot matrix theory or chi squares of the like.

Richard