Calculate the Gauss error function (erf) and complementary error function (erfc). Understand probability in normal distributions and special functions.
Any real number (positive or negative)
erf(x) - Error Function
0.84270079
Represents ~84.2701% probability in [-x, x]
erfc(x) - Complementary
0.15729921
erfc(x) = 1 - erf(x)
✓ Related Calculation
CDF approximation: P(Z ≤ x) ≈ 0.5 + 0.5 × erf(x/√2)