Excel 2010+
Engineering
The Excel ERF.PRECISE function returns the error function integrated from 0 to x (a cleaner single-argument form of ERF).
Quick answer:
=ERF.PRECISE(1) // ~0.8427
Syntax
=ERF.PRECISE(x)
| Argument | Description | |
|---|---|---|
x | Required | The value to evaluate the error function at (integrated from 0 to x). |
How to use it
ERF.PRECISE returns the error function integrated from 0 to x (a cleaner single-argument form of ERF).
=ERF.PRECISE(1) // ~0.8427
The error function is the area under the normal curve; it underpins probability, diffusion, and signal-noise calculations. ERFC (complementary) keeps accuracy in the far tail where 1−ERF would lose digits.
Try it: interactive demo
Live demo
Adjust the inputs and watch the formula and result.
Result:
Practice workbook
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Frequently asked questions
What does ERF.PRECISE return?
Returns the error function integrated from 0 to x (a cleaner single-argument form of ERF).
Which Excel versions support it?
Excel 2010 and later.
Can I use it across a range to count?
Yes — SUM the 1/0 results to count matches or threshold crossings, like a lightweight COUNTIF.
Why might it return an error?
Non-numeric input returns #VALUE!; out-of-domain values return #NUM!.
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