nlevp contains version 4.1 of the NLEVP MATLAB toolbox (80 problems).
For details of the design and organization of the collection, and a description of the 52 problems in version 3.0, see
T. Betcke, N. J. Higham, V. Mehrmann, C. Schroeder, and F. Tisseur, NLEVP: A collection of nonlinear eigenvalue problems, ACM Trans. Math. Software, 39(2):7:1-7:28, 2013. (See preprint version in the report directory).
For a description of the 22 new problems in version 4.0, see
N. J. Higham, G. M. N. Porzio, and F. Tisseur. An updated set of nonlinear eigenvalue problems, MIMS EPrint 2019.5, Manchester Institute for Mathematical Sciences, The University of Manchester, UK, Mar. 2019. 12 pp. (Can also be found in the report directory).
For a description of the 6 new problems in version 4.1, see
N. J. Higham, G. M. N. Porzio, and F. Tisseur. An updated set of nonlinear eigenvalue problems, version 4.1 in the report directory.
For details of how to install and use the toolbox see
T. Betcke, N. J. Higham, V. Mehrmann, G. M. N. Porzio, C. Schroeder, and F. Tisseur. NLEVP: A collection of nonlinear eigenvalue problems. Users' guide MIMS EPrint 2011.117, Manchester Institute for Mathematical Sciences, The University of Manchester, UK, updated March 2019. 10 pp. (Can also be found in the report directory).
See license.txt for licensing information.