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MITHRIL–an integrated direct-methods computer program
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1984
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EngineeringSoftware EngineeringComputer-aided DesignNeutral SubsetSystems EngineeringModeling And SimulationParallel ComputingComputational GeometryQuintet InvariantsMultan80 SystemComputer EngineeringComputer ScienceComputational ScienceDirect-methods Computer ProgramMethod EngineeringProgram AnalysisFormal MethodsComputer AlgebraParallel ProgrammingIntermediate Representation
The paper introduces MITHRIL, a new direct‑methods computer program. MITHRIL, written in a neutral subset of Fortran IV and built on a heavily modified MULTAN80 system, incorporates recent theoretical advances—including quartet and quintet invariants, a novel triplet‑estimation method, YZARC, MAGEX, and random‑phase tangent refinement—and is available as a menu‑driven interactive real‑time package or in conventional batch mode with multiple user‑interaction levels.
A new direct-methods computer program, MITHRIL, is described. Written in a neutral subset of Fortran IV, it is built around a heavily modified MULTAN80 system. It incorporates many recent theoretical developments in direct methods including the use of quartet and quintet invariants, a new method for estimating triplets, YZARC and MAGEX, and random-phase tangent refinement. It can be run as a menu-driven interactive real-time package or in the more conventional batch mode. Several levels of user-program interaction are provided.