Do Engineers Use Calculus?? A heated debate broke out in class today. The topic was whether or not engineers use a lot of calculus on the job. We are talking about practicing, professional engineers, not engineering students. I'm on the side that says NO -- the class of real-world problems that are addressable using calculus is very small; that the vast majority of real-world situations are analyzed using numerical methods. The other side disagreed and suggested, for example, that electrical engineers use a good deal of calculus since in many cases the theoretical situation they are looking at matches the real, physical situation. What do you think?