This definition appears rarely

See other **definitions of III**

- Abbreviation Database Surfer
- « Previous
- Next »

The symbol dx, called the differential of the variable x, indicates that the variable of integration is x. The function f(x) to be integrated is called the integrand. The symbol dx is separated from the integrand by a space (as shown). If a function has an integral, it is said to be integrable. The points a and b are called the limits of the **integral. An integral**.