# Difference between revisions of "Documentation/How Tos/Calc: ERFC function"

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## Revision as of 07:57, 3 May 2010

## ERFC

Calculates the complementary error function (complementary Gauss error function).

This function is only available if the **Analysis AddIn** is installed.

### Syntax:

**ERFC(number)**

- returns the error function calculated between
and infinity, that is, the complementary error function for**number**.**number**

- ERFC(
*x*) = 1 - ERF(*x*).

### Example:

**ERFC(0.5)**

- returns
.**0.479500122187**

### Issues:

- This function currently appears in the AddIn category of the Function Wizard.