| 摘要 |
PURPOSE:To realize production of a simulation program of description approximate to a physical model by converting automatically an optional deviated differential equation in a real space into that in a normal space. CONSTITUTION:A mapping conversion rule deciding part 11 selects the mapping conversion rule data 103 based on the lattice point number 104 and the memory upper limit value 105 so that the data 103 is stored within a memory is an execution state. A differential operator evolving part 12 transforms the given deviated differential equations 21 and 101 into a hierarchical combination form of the primary differential operators. A mapping conversion rule evolving part 13 converts a deviated differential equation obtained in the hierarchical combination of the primary differential operators into a mapping based on the mapping conversion rule selected by the part 11. A numeric calculation program producing part 14 changes the deviated differential equation underwent the mapping conversion into a program. Thus it is possible to produce automatically a simulation program by a boundary-fit method in addition to the conventional differential method.
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