功能:反半正矢函数(Inverse Haversine)

格式:InverseHaversine(z)、InverseHaversine2（z)

说明:InverseHaversine(z)=2*{asin<算式解析\asin>}(z^0.5)、InverseHaversine2(z)=2*{asin2<算式解析\asin>}(z^0.5)

关于:{Inverse Haversine<http://mathworld.wolfram.com/InverseHaversine.html>}

例子:

a=InverseHaversine(i+2.345678)//回车
a = 2.6329030212681 + 2.12022318769015i

b=InverseHaversine2(i+2.345678)//回车
b = 3.65028228591149 - 2.12022318769015i