# A program for performing angular integrations for transition operators

## Description

Abstract The MCHF_MLTPOL program performs the angular integrations necessary for expressing the matrix elements of transition operators, E1, E2, …, or M1, M2, …, as linear combinations of radial integrals. All matrix elements for transitions between two lists of configuration states will be evaluated. A limited amount of non-orthogonality is allowed between orbitals of the initial and final state. Title of program: MCHF_MLTPOL Catalogue Id: ACBA_v1_0 Nature of problem This program is part of the MCHF atomic structure package [1] for bound state systems and performs the angular integrations for electric E1, E2, ..., Elambda and/or magnetic M1, M2,..., Mlambda transition operators. Versions of this program held in the CPC repository in Mendeley Data ACBA_v1_0; MCHF_MLTPOL; 10.1016/0010-4655(91)90140-G This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)