Complex logarithm of the beta function of a complex argument.
Loading LOADSUB ALL FROM "CGAMMA.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage COMPLEX Z,C
C=FNCloggamma(Z)
Description
FNCloggammareturns the value of the logarithm of the gamma function of the complex valuez, log[Γ(z)]. The value of log[Γ(z)] approaches ± aszapproaches a negative real integer or zero.
Errors
FNCloggammacauses an HTBasic error if its argument is not of type COMPLEX or if the magnitude of either the real or imaginary component of log[Γ(z)] exceeds MAXREAL, the largest number representable.