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General features

 

It is often useful to make a current or stress map of the system being analyzed. These are helpful to check against exact solutions, and can often give insight into systems not capable of being understood analytically. The sections below will discuss current maps for the electrical programs, both finite difference and finite element, and stress maps for the finite element programs. Histograms are a way of making plots of the stress or current distribution functions. These distribution functions and their various moments are way of going one step beyond just analyzing the effective properties, and can give additional insight into the random system being studied. Also, the programs BURN2D.F and BURN3D.F will be discussed, which check an image for phase percolation.