Description: The magnetostatic approximation to Maxwell's equations describing electromagnetic phenomena is solved to compute the magnetic field due to a known distribution of direct current. The magnetic field is completely decoupled from the electric field; as a result, the electric field does not enter the magnetostatic formulation. Magnetostatic analysis is available with two-dimensional (planar) and three-dimensional continuum elements and is based on an element edge-based interpolation of fields instead of the usual node-based interpolation. The magnetostatic analysis can be driven by prescribed volume and/or surface current density vectors or by prescribed values of the magnetic vector potential on surfaces. The magnetic behavior of the medium can be linear or nonlinear and must be defined everywhere in the domain. Nonlinear magnetic behavior can be defined in terms of one or more B–H curves.