ERF

Returns the error function integrated between lower_limit and upper_limit.

If this function is not available, run the Setup program to install the Analysis ToolPak. After you install the Analysis ToolPak, you must enable it by using the Add-Ins command on the Tools menu.

Syntax

ERF(lower_limit,upper_limit)

Lower_limit   is the lower bound for integrating ERF.

Upper_limit   is the upper bound for integrating ERF. If omitted, ERF integrates between zero and lower_limit.

Remarks

• If lower_limit is nonnumeric, ERF returns the #VALUE! error value.
• If lower_limit is negative, ERF returns the #NUM! error value.
• If upper_limit is nonnumeric, ERF returns the #VALUE! error value.
• If upper_limit is negative, ERF returns the #NUM! error value.

  

  

Examples

ERF(0.74500) equals 0.70793

ERF(1) equals 0.84270