1943年以前,穿过大西洋运送战略物资的英美护航船队频频受到德国潜艇的袭击,损失惨重,当时,英美两国又不可能大量增加护航舰只,怎么办?这一难题被数学家们解决了。数学家用概率论分析后发现,船队是否被袭击,取决于航行中是否与敌人相遇,而与敌人相遇又属于可能发生,也可能不发生的随机事件。其规律如下;1.一定数量的船只,编队规模越 Before 1943, the Anglo-American escort fleet that carried strategic supplies across the Atlantic was frequently attacked by the German submarine and suffered heavy losses. At that time, it was impossible for Britain and the United States to increase the number of escort ships in large numbers. This problem was solved by mathematicians . Mathematicians using probability theory analysis found that the fleet is attacked, depending on whether the encounter with the enemy during the flight, but also meet with the enemy may belong to may or may not occur random events. The rules are as follows: 1. A certain number of vessels, the formation of the more scale