| 摘要 |
PURPOSE:To effectively decide the optimum calculation sequence of a relating calculation expression when a value of a certain variable is changed by deciding an optimum recalculation sequence from the information of the variable in which the value is changed and the second matrix after the operation of a matrix arithmetic means is stopped. CONSTITUTION:When a sequence decision part 15 is activated by a control part 11, in the respective elements of the fourth column of a matrix R' in a local memory 12, the elements in which values are not '0' are rearranged in an ascending sequence, information of the corresponding variables is set in a main memory with the sequence left as it is and the completion of the operation is informed to the control part 11. The variables set in the main memory by a sequence check part 15 have, in the example of the matrix R', the sequence of GAMMA'7,4, GAMMA'8,4, GAMMA'11,4, GAMMA'12,4, GAMMA13,4, GAMMA'14,4. The order of sequence of the variables set in this main memory, namely, the order of the calculation expression defined in the variables to which numbers 7, 8, 11-14 are added (the total of the quantity, the amount of goods A, the total of the amount, a constitution ratio of the amount of the goods A, the constitution ratio of the amount of goods B, the constitution ratio of the amount of goods C) is the optimum recalculation sequence when the quantity of the goods A is changed. |
