Incomplete beta function.

Polygamma function.

Incomplete beta function and its first derivative.

Inverse incomplete gamma function.

Create an iterator which evaluates the natural logarithm of 1+x for each iterated value.

Create an iterator which evaluates the binary logarithm for each iterated value.

Create an iterator which evaluates the natural logarithm of 1-exp(-|x|) for each iterated value.

Inverse incomplete beta function.

Trigamma function.

Inverse incomplete beta function.

Natural logarithm of the beta function.

Calculate a scaled Lanczos sum for the approximation of the gamma function.

Create an iterator which evaluates the natural logarithm of the beta function.

Create an iterator which evaluates Binet's formula for each iterated value.

Gamma function.

Calculate the Lanczos sum for the approximation of the gamma function.

Create an iterator which evaluates the gamma function for each iterated value.

Create an iterator which evaluates the Riemann zeta function for each iterated value.

Compute the ratio of two gamma functions.

Compute gamma(x+1) - 1.