# System Functions

EPT( ) | Return Exponent Value

## Format

EPT(num[,ERR=stmtref])
Where:

num | Numeric expression whose exponent is to be returned.
stmtref | Program line number or statement label to which to transfer control.

## Returns

Numeric exponent (power of 10).

## Description

The EPT( ) function returns the power of 10 for the numeric expression provided.

## Example

ept(10) ! Same as ept(0.1*10^2) - yields 2
ept(5) ! Same as ept(0.5*10^1) - yields 1
ept(.02) ! Same as ept(0.2*10^-1) - yields -1

B=27*9
print ept(B),ept(9*2)
->run
3 2