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Function std.mathspecial.sgnGamma
The sign of Γ(x).
real sgnGamma(
real x
) pure nothrow @nogc @safe;
Returns -1 if Γ(x) < 0, +1 if Γ(x) > 0, NAN if sign is indeterminate.
Note that this function can be used in conjunction with logGamma(x) to evaluate gamma for very large values of x.
Authors
Stephen L. Moshier (original C code). Conversion to D by Don Clugston
License
Copyright © 1999-2025 by the D Language Foundation | Page generated by ddox.