A program for computing the Fermi-Dirac functions

✍ Scribed by Alicia Bañuelos; Ricardo Angel Depine; Roberto Claudio Mancini

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 42 KB
• Volume: 35
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/s0010-4655(84)82824-6

✦ Synopsis

Nature of physical problem

The Fermi-Dirac function appears in a wide range of physical applications. The package contains a function routine to calculate Fa(a ) for o > 0 and all real ¢x.

* Fellow of CONICET (Consejo Nacional de lnvestigaciones

Cient~ficas y T6cnicas).

Method of solution

The method of solution is based on the series expansions of Rhodes [ 11, Nordheim [ 2], McDougaU and Stoner [ 31 and the authors [4].

Restrictions on the complexity of the problem

The relative accuracy parameter EPS should not be set below 10 -s . The restriction is imposed in order to avoid a possible underflow condition. The user can improve the accuracy, depending on the computing system employed.