地球上任意两点(经纬度)之间距离测算,主要用于大地主题解算

编排万年日历,学习多个函数的编写及调用，提高综合测算能力。-scheduling calendar years, learning various functions and the preparation of call, to increase the overall capacity calculations.

生辰八字测算 根据阳历日期测算生辰八字 适合二次开发-Estimates birthday horoscopes birthday horoscopes estimated according to the Gregorian date