SLFCEM stands for San Le's Free Computational Electromagnetics. It is a package of scientific software and graphical user interfaces for use in computational electromagnetics using the finite element method. It is written in ANSI C by San Le and distributed under the terms of the GNU license.

Disk Mesh with first 4 Eigenmodes of Waveguide, Electric Field Magnitude in color

Voltage for Point Charge

What SLFCEM includes

Two of the basic finite element types(quadrilaterals and triangles) for electrostatics and solving the waveguide problem for cutoff frequencies. SLFCEM has edge based interpolation for modal analysis.

2 Graphical User Interfaces for each element type:

Example of quad GUI

Go to download page .

Acknowledgments
I would like to thank

for allocating their resources to these pages. They have provided a fantastic service for Free Software and Open Source Developers, and I wish the company all the best.