Differentiation is a branch of calculus used to determine the rate at which a quantity changes with respect to another quantity. It is used to find the gradient (slope) of a curve at any point. The process of finding a derivative is called differentiation.
For a function �, the derivative is written as:
or
Differentiation is widely used in mathematics, physics, engineering, and economics to study motion, growth, and changes in variables.
Example:
If �, then
which means the rate of change of � depends on the value of �.