# FPPAC: A two-dimensional multispecies nonlinear Fokker-Planck package

## Description

Title of program: FPPAC (CRAY VERSION) Catalogue Id: AAQU_v1_0 Nature of problem The complete nonlinear multispecies Fokker-Planck collision operator for a plasma in two-dimensional velocity space is solved. The operator is expressed in terms of spherical coordinates (v=speed, theta=angle between velocity and magnetic field directions, phi=azimuthal angle) under the assumption of azimuthal symmetry. Provision is made for additional physics contributions. Versions of this program held in the CPC repository in Mendeley Data aaqu_v1_0; FPPAC (CRAY VERSION); 10.1016/0010-4655(81)90105-3 aaqu_v2_0; FPPAC (CDC VERSION); 10.1016/0010-4655(81)90105-3 aaqu_v3_0; FPPAC88; 10.1016/0010-4655(88)90150-6 aaqu_v4_0; FPPAC94; 10.1016/0010-4655(94)90087-6 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)