研究模糊算法时编写的一个小函数，曾经用于第一版XUFO上的模糊控制器，优点是计算量小，简单易用，缺点是适应性不够强，不能满足高精度的需要。建议在使用的时候可以加入误差积分，形成简易模糊PID的架构，可以提高稳定时的精度。 -Study of fuzzy algorithms written a small function, has been used in the first edition of XUFO on the fuzzy controller, the advantage of c

计算在地球岁差、章动、极移，太阳及太阳系各大行星摄动等影响下的较高精度月球轨道-Calculation of the Earth precession, nutation, polar motion, the sun and the solar system planets perturbed other high precision under the influence of the moon s orbit

实现永磁同步电机的无位置控制，采用滑模算法计算转子位置角度，精度高，相应速度快。(Realize position control of permanent magnet synchronous motor, rotor position Angle is obtained by using the sliding mode algorithm, high accuracy, the corresponding speed.)