we use this because calculus is a core subject based upon integrals and integration and in most part of engineering we use its rules and techiques
130181
Truth be told in my experience most engineers don't use calculus very often.  An understanding of calculus is required to find derivations for most formulas that are used.  But in practical application most problems are solved making assumption that simplfy problems to simple algebra.  One application used in practice is definte intergration ussually using a spreadsheet.
280358
Why is this in Mathematics?
462748
I am taking College Algebra with Trigonometry and that is hard, so I know Calculus is real hard. That is a hard question to figure out.
401194
I haven't got a clue what you are talking about, but the fundamental theorem of Calculus is that differentiation and integration are the reverse process of each other.\n\nThis link between differentiation and integration is what Newton and Leibniz discovered independently in the late 1600's.  There is a common mis-conception that Newton and Leibniz invented calculus, but calculus dates right back to the Greeks and Eudoxus and his method of exhaustion is the earliest form of integration.\n\nI think you need to re-word your question if you want some productive help.
166113
math, because it is challenging and you have to think a lot to solve of the problems.
126853
i'm an accountant and i've never had to use calculus...\n\nthat's more mathematics and physics i think...
296376
u can even use calculus to find this out
639421
because science is all about calculation
11338
there are many uses for aerospace engineers
107094
These links explain the story behind the calculus and the influence of Huygens and Leibniz.
87231
calculus was largely invented to describe problems in physics;  physics is largely reliant on the framework of calculus for its meaning.\n\ndifferentiating a function and making the constant go away doesn't introduce a "50% error" (whatever that means); it means that constants are just that -- constant -- and do not vary with the independent variable.\n\nyou're right about one thing though:  an erroneous conclusion has certainly occurred here.
576439
Science, science, and more science with math courses.
616354
Math is used all the time in the engineering sciences.  Many physical phenomena, including fluid flow, heat transport, and diffusion can be described by appropriate partial differential equations.  In order to solve these equations and make predictions, you need to be good at calculus.\n\nIf you limit yourself to addition, subtraction, multiplication, and division, you would be stuck with linear models for everything.  This means that any more complicated relationship between two variables could not be modeled continuously, and you would never be able to extrapolate with any confidence.  Thus development of new technology would be strictly trial and error (and you wouldn't even have a good trial and error system without statistics).\n\nHang in there!  Get through that math.  You don't have to like it, but you will inevitably appreciate the developments that math has enabled.
52743
I've heard very well of Mathematics for Economists -- by Carl P. Simon, Lawrence Blume as a basic calculus book. Forget the "for Economists", calculus is calculus. It is expensive though.
189273
I started writing this out myself, and I found a great answer, much better than any I could give you. Here are a few quotes, and the whole article is at the URL noted in the sources.\n\n"The importance of calculus is that most of the laws of science do not provide direct information about the values of variables which can be directly measured. In other words, if you are lost, then physics will not help you find your way home, because there are no laws of physics that provide direct information about position ... many of the most important principles in science are rules for the way variables change. For instance, physics tells you how velocity will change in various situations -- i.e. it tells you about acceleration.\n\nThis is why it's important to have a mathematical way of talking about change. That's why you see the concept of the derivative used throughout science -- in physics, chemistry, biology, economics, even psychology. \n\n...\n\nThe primary importance of calculus in the hard sciences is that it provides a language, a conceptual framework for describing relationships that would be difficult to discuss in any other language.\n\nWhat is worthwhile for students to gain from a calculus course is the ability to read books that use the language of calculus and, at least to some extent, follow the derivations in those books. Unfortunately, being being proficient at the sort of [garbage] skills required to get a good grade in a calculus course is not a lot of help in this respect.\n\nI tell my calculus students that their grades are probably not a very good indicator of being able to do well in future courses. What's more important is whether they make the effort to follow the reasoning given in class and in the text. The most important part of the course (at least when I teach it) is the part that's never tested on."\n\nI *like* this guy.
654494
EE and ME is for math. You have to have a strong interest in math!
217052
So you know what you have to teach. Physics also develops on itself a lot, so having a structured order of topics makes learning easier for the students.