Introduction to Differential Equations

A differential equation relates a function with its derivative.

Some famous examples of differential equations include:

Parachutist

As the drag force experienced by a parachutist is proportional to the square of the velocity, the net force acting on the parachutist forms a 1st Order Differential Equation.

Epidemiology

The rate of infection of a virus is dependent on 3 critical factors: (A) The transmission rate of the virus, β; (B) The number of currently infected people, I; and (C) The number of people still susceptible to the virus (P - I).

Pendulum