Direct evaluation method in computational electromagnetics (DEMCEM) package. Direct Evaluation Method in Computational ElectroMagnetics (DEMCEM) package is free software for the accurate and efficient evaluation of singular integrals arising in Galerkin EM surface integral equation formulations over triangular tessellations. It was developed by Athanasios G. Polimeridis during his postdoctoral studies at LEMA-EPFL, under the mentorship of Prof. Juan R. Mosig. The source code of DEMCEM can be found in Matlab and C++. Also, mex plugins are available to provide a fast Matlab interface to this functionality. ReadMe before getting started.