# Introduction to Calculus

## What is Calculus?

Calculus is a Latin word that means “pebble”. It is a branch of Maths that tries to understand a bigger phenomenon by looking at its small pieces.

Here we find derivatives and integrals of functions, by methods originally based on the summation of infinitesimal differences.

## Types of Calculus

Calculus has two main branches:

– It is used to cut something into smaller pieces to find how it changes. Derivative of a function is the “rate of change” of that function, which is represented by the slope of that function.**Differential Calculus (Derivatives)**– It is used to join (i.e. integrate) the smaller pieces together to find the total quantity, such as areas, volumes, central points, etc.**Integral Calculus (Integration)**

Differential Equation is an equation consisting of a function and one or more of its derivatives.