The process of finding a derivative is called differentiation.
Derivative is the rate of change of vye with respect to X.
The revision.
It's all about slow or steepness or we call it rise over run.
You remember in physics we studied something called S. Young's Modulus Nova School Schooldays.
Don't worry if you've forgotten, Young's Modulus is a mechanical property that measures the stiffness
of a solid material to calculate Young's modulus.
We use the slope formerly that is rise over run, which is equal to the rate of change of stress over
the rate of change of strain.
There are several applications of differential equations, like understanding the spread of disease,
weather and climate prediction, traffic flow, financial market study or population growth study,
etc., etc..