Enhanced Capabilities for a Student-Oriented Finite Element Electrostatic Potential Program

Several enhancements to FINEL, a student-oriented finite element program for electrostatic potential problems, and PLOTR, an associated plotting program, are described. These include incorporation of specified charge density within the solution region, specification of material regions with differing relative permittivities, "ballooning" for description of open boundary conditions, energy storage computation, and several convenience features.