# Futurebasic/Language/Reference/compound

# COMPOUND function edit

## COMPOUND edit

### Function edit

(+) | Appearance |
(+) | Standard |
(+) | Console |

### Syntax edit

*compoundFactor#* = **FN COMPOUND#**(*rate*, *periods*)

### Description edit

Returns the compounding factor for the given interest rate and number of periods. The interest rate should be expressed as a fraction of 1; for example, 5.2 percent should be expressed as 0.052.

### Note edit

uses the following formula:
**COMPOUND**

`compoundFactor# = `

(1 +

)*rate*^{periods}