Computing device of the calculation program and computer-readable recording medium as well as the system of linear equations was recorded the calculation program of simultaneous linear equations generated by the discretization of the differential equation

摘要

PROBLEM TO BE SOLVED: To easily solve simultaneous linear equations formulated by digitizing a differential equation by a computer without expert knowledge and experience of high level, and to solve the simultaneous linear equations having a number of unknowns.;SOLUTION: The simultaneous linear equations are formulated by digitizing the differential equation, and a matrix display is formulated from the formulated simultaneous linear equations (705). The matrix display is divided into matrix displays of plural groups (706), and an inverse matrix of a coefficient matrix in the matrix display of each group is operated. Only an expression positioned on a boundary part between the groups is taken out of the matrix display of each group, the matrix display after the division is compressed (707), and the inverse matrix of the coefficient matrix of the compressed matrix display is operated (708). The solution of the compressed matrix display is sought on the basis of the operated inverse matrix, and the solutions of all the unknowns in the formulated simultaneous linear equations are sought on the basis of the determined solution and the matrix display of each group after division.;COPYRIGHT: (C)2002,JPO