# simple function

Definition from Wiktionary, the free dictionary

## English[edit]

### Noun[edit]

**simple function** (*plural* **simple functions**)

- (analysis) Any complex-valued measurable function whose range is finite.

#### Usage notes[edit]

Some authors do not require that a simple function be measurable, but only that its domain be measurable. For such authors, the "simple function" defined above would be called a "simple measurable function."