# Calculus

## Intro

Intro

As you probably know, geometry is the study of shapes and algebra is the study of relationships. So what is calculus all about?

**Calculus**** **is the mathematical study of *change*. In fact, it is all about infinitesimally small change.

Calculus has two major branches:

**Differential calculus****Integral calculus**

These two branches are related to each other by the **fundamental theorem of calculus**. Both branches make use of the fundamental notions of **limits** which is basically what separates algebra from calculus.

Today, calculus has widespread uses in science, engineering and economics and can help solve many problems that elementary algebra alone cannot.