ErfInv

The inverse error function: solves for .

WikipediaError function↗MathWorldInverseErf↗Erf↗WikidataQ579262↗DLMF7.17.E1↗7.2.E1↗Wolfram LanguageInverseErf✓↗

ErfInv(x)the inverse error function, solving .

Domain: Special functions

Details

• Inverse of Erf: .
• , and as , the limits where Erf itself saturates.
• Computed by Newton's method on Erf itself, refining an initial approximation to full machine precision.
• Intrinsically ill-conditioned near : a tiny change in x there produces a large change in the result.
• compute-engine leaves a call outside unevaluated rather than erroring or returning NaN.

Examples

See also: Erf, Erfc