A subprogram for direct solution of Poisson equation in cylindrically symmetric geometry

Abstract A program for a direct solution of the Poisson equation in cylindrically symmetric geometry is described. It is based on the use of fast Fourier transforms for the axial solution, and an expansion in cubic B-splines for the radial solution. Title of program: POISSON Catalogue Id: ADEC_v1_0 Nature of problem Solution of Poisson equation in cylindrically symmetric geometry. Versions of this program held in the CPC repository in Mendeley Data ADEC_v1_0; POISSON; 10.1016/0010-4655(96)00099-9 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)本文档详述了一种直接求解圆柱对称几何中泊松方程的程序。该程序基于快速傅里叶变换实现轴向解的计算，并采用三次B样条展开求解径向问题。 程序名称：POISSON 目录编号：ADEC_v1_0 问题性质：圆柱对称几何中泊松方程的求解。 该程序版本已存档于Mendeley Data中的CPC程序库： ADEC_v1_0; POISSON; 10.1016/0010-4655(96)00099-9 此程序由贝尔法斯特女王大学（1969-2019年）所持有的CPC程序库导入。