## Before You Watch

Before watching this video, make sure you’ve seen Introduction to Calculus first, as this video follows on from the introduction.

This video also talks about some of the concepts that were introduced in Linear Equations, so consider watching that one as well, then come back.

## The Video

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## Now What?

By now you will be familiar the basics of calculus, the meaning of rates of change, and why we are interested in rates of change. You should also understand the concept of differentiation, which is the mathematical process of going from one formula that relates two variables (such as position and time) to another formula that gives the rate of change between those two variables (such as the rate of change between position and time, also known as speed).

The next step is to learn how to differentiate. In the next video, Differentiation of Polynomials, you’ll be shown how to differentiate the group of equations known as polynomials.

## But When I am Going to Use This

Calculus is the mathematical study of how things change relative to one another. For instance, velocity (or speed) is a change of position over a change in time, and acceleration is a change in velocity over a change in time – so any motion is studied using calculus. Other examples include the flow of water through pipes over time, or changing commodity prices against demand. Because change is everywhere, the potential applications for calculus are endless, particularly in engineering and science. Calculus is necessary knowledge for any degree related to engineering or science.