I am glad that I am not looking for a job in today’s environment where Government policy has mowed many manufacturing jobs offshore. That being said, I always found (and still do) Calculas interesting and useful. Look at it this way. if you can apply calculus with a little bit of probramming you will have a leg up on a lot of people.
I pefer to do my own probramming with my legs in the air and a gluten free Redbridge beer in my hand, TV clicker in the other.