SO算法就是模拟一群鸟寻找食物的过程，每个鸟就是PSO中的粒子，也就是我们需要求解问题的可能解，这些鸟在寻找食物的过程中，不停改变自己在空中飞行的位置与速度。大家也可以观察一下，鸟群在寻找食物的过程中，开始鸟群比较分散，逐渐这些鸟就会聚成一群，这个群忽高忽低、忽左忽右，直到最后找到食物。这个过程我们转化为一个数学问题。寻找函数　 y=1-cos(3*x)*exp(-x)的在[0,4]最大值。(SO algorithm is the simulation of a flock of birds for food, each bird is in PSO particles, which is what we need to solve the problem of possible solutions, these birds are looking for food in the process, constantly change their position and velocity in the air. You can also look at the birds are looking for food in the process, to the birds scattered, these birds will gradually gather into a group, this group fluctuated, huzuohuyou, until finally find food. This process is transformed into a mathematical problem. Find the maximum value of the function y=1-cos (3*x) *exp (-x) in the [0,4].)