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Function std.mathspecial.erfc
Complementary error function
erfc(x) = 1 - erf(x)
= 2/ (π)
x, ∞ exp( - t, 2) dt
This function has high relative accuracy for
values of x far from zero. (For values near zero, use erf(x)).
Prototype
real erfc( real x ) pure nothrow @nogc @safe;
Authors
Stephen L. Moshier (original C code). Conversion to D by Don Clugston