It's not an everyday thing for me, but I've made frequent use of series and differentiation in my career and worked with people who used it for a living. It de

It's not an everyday thing for me, but I've made frequent use of series and differentiation in my career and worked with people who used it for a living. It depends on what you do. One will absolutely run into calc doing any sort of scientific computing, simulations, signal processing, machine learning, or graphics programming. But you can absolutely make a good living in software knowing no calculus.