Used to use some algebra and trig in my old job.
No calculus.
Hated Calc in college.
Got good at Calc 1.....by the end of Calc 2 LOL
I had 2 years of college calc. Second year* was hard. 30 years of designing power supplies and never used 2nd year calc once. Not even once!
* 2nd year calc has complicated formulas for the limits of integration.