erf top-level property

MemoizedFunction<num, num> erf

Returns an approximation of the real valued error function defined as: erf(x) = 2/sqrt(pi) * integral(from: 0, to: x, exp(-t*t), dt)

Compared to the approximation provided by gnuplot the maximum error is 1.5e-15 for x > 1.0 and 4.0e-16 for x in (-1, 1).


final erf = MemoizedFunction(_erf);