FDEXTR, a program for the finite-difference solution of the coupled-channel Schroedinger equation using Richardson extrapolation

被引：3

作者：

Abrashkevich, A.G. ^{[1
]}

Abrashkevich, D.G. ^{[1
]}

机构：

[1] Weizmann Inst of Science, Rehovot, Israel

来源：

Computer Physics Communications | 1994年 / 82卷 / 2-3期

关键词：

Chemistry - Computer software - Differential equations - Eigenvalues and eigenfunctions - Error analysis - Finite difference method - FORTRAN (programming language) - Iterative methods - Nonlinear equations - Physics;

D O I：

10.1016/0010-4655(94)90169-4

中图分类号：

学科分类号：

摘要：

A FORTRAN-77 program is presented which solves the Sturm-Liouville problem for a system of coupled second-order differential equations by the finite difference method of the second order using the iterative Richardson extrapolation of the difference eigensolutions on a sequence of doubly condensed meshes. The same extrapolational procedure and error estimations are applied to the eigenvalues and eigenfunctions. Zero-value (Dirichlet) or zero-gradient (Neumann) boundary conditions are considered.

引用

页码：209 / 220