| 摘要 |
PROBLEM TO BE SOLVED: To quickly and accurately analyze a modeled survival system by calculating a survival rate in the distance of an object to be solved in the survival system by a specified condition in an arithmetic means. SOLUTION: A CPU 21 stores the values of a replenishment success rate βand an advancing distance X from the keyboard 23 of this survival system analyzer at a RAM 25, calculates the respective terms of the total sum Σ from L=0 to <X> by expressions I and II based on the stored values of the replenishment success rate βand the advancing distance X, and stores the calculated results of the respective terms for L=0 to <X> in the RAM 25. Then, the total sum Σ of the stored calculated results of the respective terms is calculated by executing a total sum calculation module, the calculated total sum Σ is substituted in the expression III and the survival rate P(XS) is obtained. In the expressions I and III, <X> is a maximum integer not exceeding X, and θis a step function. |
