gamma and related functions

In this part several functions can be seen, which can be derived from the gamma function:

• Airy function
• Bessel function
  • modified -
  • spherical -
• beta function
  • Catalan -
  • incomplete -
• gamma function
  • incomplete -
  • di-
  • logarithmic -
  • poly-
• Lerch transcendent
• Pochhammer symbol
• theta function
  • Riemann-Siegel -
• zeta function
  • generalized -
  • Riemann-Siegel -