The Excel ERFC function calculates the Complementary Error Function, integrated between a supplied lower limit and infinity.
The format of the function is:
where x is the lower limit of the integral.
The Erfc function was improved in Excel 2010 in that it can now accept negative function arguments.
The spreadsheet below shows examples of the Excel Erfc function being used to calculate the Complementary Error Function integral for different lower limits.
Further examples of the Excel Erfc function can be found on the Microsoft Office website.
If you get an error from the Excel Erfc function this is likely to be one of the following :
|#NUM!||-||Occurs in Excel 2007 or earlier, if the supplied value of x is negative|
|#VALUE!||-||Occurs the supplied x is non-numeric|
Occurs when Analysis ToolPak add-in is not enabled in your Excel.