Definition, Meaning & Synonyms
dx
noun
dee-ex
Definition
In mathematics and engineering, ‘dx’ represents an infinitesimally small change in the variable ‘x’.
Examples
- When calculating the area under a curve, we use the integral of f(x) dx.
- The derivative of a function gives the rate of change of that function with respect to x, involving the element dx.
- In physics, dx may be used when discussing motion over a very small distance.
Meaning
The notation ‘dx’ is primarily used in calculus to denote an infinitesimal increment in the variable ‘x’, often in the context of derivatives and integrals.
Synonyms
- infinitesimal change
- increment
- element of x
