Gamma
 Usage
• Gamma[z] is the Euler gamma function  .
• Gamma[a, z] is the incomplete gamma function  .
• Gamma[a,  ,  ] is the generalized incomplete gamma function  .
Notes
• Mathematical function (see Section A.3.10). • The gamma function satisfies  . • The incomplete gamma function satisfies  . • The generalized incomplete gamma function is given by the integral  . • Note that the arguments in the incomplete form of Gamma are arranged differently from those in the incomplete form of Beta. • Gamma[z] has no branch cut discontinuities. • Gamma[a, z] has a branch cut discontinuity in the complex z plane running from  to  . • New in Version 1.
| 
