Show All
ERF
See Also
Returns the error function integrated between lower_limit and upper_limit.
If this function is not available, and returns the #NAME? error, install and load the Analysis ToolPak add-in.
How?
- On the Tools menu, click Add-Ins.
- In the Add-Ins available list, select the Analysis ToolPak box, and then click OK.
- If necessary, follow the instructions in the setup program.
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.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How?
- Create a blank workbook or worksheet.
- Select the example in the Help topic. Do not select the row or column headers.
Selecting an example from Help
- Press CTRL+C.
- In the worksheet, select cell A1, and press CTRL+V.
- To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.
|
|
| A |
B |
| Formula |
Description (Result) |
| =ERF(0.74500) |
Error function integrated between 0 and 0.74500 (0.707929) |
| =ERF(1) |
Error function integrated between 0 and 1 (0.842701) |
|
Show All