Complex zeros of analytic functions

Title of program: CRTEST Catalogue Id: AAOO_v1_0 Nature of problem The subroutine CROOT in CRTEST provides a versatile means of locating the zeros (within an annular region of the complex plane) of an analytic function specified by a user-supplied subroutine. CROOT has already been successfully applied in electromagnetic diffraction theory, in plasma astrophysics and in solar energy. Versions of this program held in the CPC repository in Mendeley Data AAOO_v1_0; CRTEST; 10.1016/0010-4655(83)90005-X This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)