| 摘要 |
PURPOSE:To provide the electromagnetic field analysis device which selects the best solution corresponding to the state of a matrix and the capacity of a memory. CONSTITUTION:A direct method (Cholesky method) and a repeating method (ICCG method) are prepared for the solution of linear equation system consisting of elements of a rigid matrix obtained from input data, and an electromagnetic field is analyzed by solving the linear equation system by the repeating method (ICCG method) when the number of non-zero elements of the rigid matrix is less than a specific value that the memory allows and the frequency omega of a power source is less than an input parameter alpha or by the direct method (Cholesky method) when not, so that the result is outputted on a display 8 or printer 9. Consequently, the best solution is selected to analyze the electromagnetic field with efficiency. |
