By Oleksandr Koliakin
There are two areas of calculus. One area of calculus deals with differentiation, and the other deals with integrals.
Differentiation is used to find the gradient of a non-linear function at a certain position. We will publish an article about differentiating quadratic functions soon.
Integration is pretty much the opposite of differentiation. Integrals have many uses, including calculating the area under the curve of a function.

We will be releasing an article on integrals soon.
Calculus is considered to be very complicated, but it is a very precious tool in the hands of a mathematician or a scientists, since calculus is not only used in mathematics, but is also widely used in physics.
Sources:
Sciencia (book)