Patent ID: 7720651

Claim:
A method of computing interactions produced by at least one directional composite source and described by a first system of linear equations comprising: using a computer processor and a computer program stored in a computer-readable medium calculating at least one directional composite source, wherein said at least one directional composite source represents at least one of an electrical current, a distribution of electric charge, an exciting pressure, and an exciting particle flux and wherein said first system of linear equations models at least one of an electric field, a magnetic field, a pressure, and a particle flux that is produced by said at least one directional composite source; calculating at least one directional composite tester from more than one testers wherein an optimization procedure is used to cause said at least one directional composite tester to strongly receive disturbances from a physically-achievable first portion of space relative to said at least one directional composite tester and said at least one directional composite tester is affected relatively weakly by energy propagating from a second portion of space relative to said at least one directional composite tester; transforming at least a portion of said first system of linear equations into a second system of linear equations based at least in part on said at least one directional composite source and said at least one directional composite tester; and using said second system of linear equations computing and storing interactions between said at least one directional composite source and said at least one directional composite tester.