HP C/iX Library Reference Manual (30026-90004)

Chapter 5 191
HP C/iX Library Function Descriptions
gamma
y
= signgam * exp(
y
);
where LN_MAXDOUBLE is the lowest value that causes exp to return a range error, and is
defined in the <values.h> header file.
Error handling can be changed by a user-written matherr function.