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erfinv

inverse error function

Syntax

y = erfinv(x)

Arguments

x: vector or matrix
y: vector or matrix (same size as x)

Description

The erfinv function computes the inverse of the erf error function. Thus, erf(erfinv(x)) = x for all x such that -1 ≤ x ≤ 1 .

Examples

x = linspace(-0.99, 0.99, 100);
y = erfinv(x);
plot2d(x, y)

See also

cdfnor — cumulative distribution function normal distribution
erf — The error function.
erfc — The complementary error function.
erfcx — scaled complementary error function.

References

Milton Abramowitz and Irene A. Stegun, eds. Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. New York: Dover, 1972.

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