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Error Function Calculator
Value of the error function erf(x) and its complement.
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erf(x)
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Value of the error function erf(x) and its complement.
Error Function Estimator
Enter your numbers below for an instant estimate.
0
๐ก Tip: erf(x) = 2/sqrt(pi) integral of exp(-t^2).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Error Quick Guide
Typical values for reference.
| x | erf(x) | ||
|---|---|---|---|
| 1 | 0.842701 | ||
| 0.5 | 0.520500 | ||
| 2 | 0.995322 | ||
| -1 | -0.842701 | ||
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Error Function Calculator FAQ
Answers to common questions about this calculator.
A function from the integral of the Gaussian bell curve.
CDF at z equals half of one plus erf of z over root 2.
One minus erf.
About seven decimal places.