How do you write Leibniz notation?

In Leibniz’s notation, the derivative of f is expressed as d d x f ( x ) \dfrac{d}{dx}f(x) dxdf(x)start fraction, d, divided by, d, x, end fraction, f, left parenthesis, x, right parenthesis.

Why do we use Leibniz notation?

Leibniz’s notation has some objective advantages. Unlike Newton’s notation, it makes it easy to do dimensional analysis, and it works well when you have lots of different variables that you might be differentiating or integrating with respect to.