About all I end up sketching is geometry/trigonometry and that's exceedingly rare these days. Programming classes was math-heavy, but in more than 30 years of doing it for a living I've never used more than pretty simple math. Programming is far more logic than math. There have been a couple of occasions where calculus would have been useful--but googling the answer or brute-forcing the answer was far faster than scraping the rust off my calculus.