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math and applied math
>
sphere event
Contents
·
No. 1
·
No. 2
·
Containing Phrases
·
More results...
No. 1
球面上两点之间的最短连线的长度,就是经过这两点的大圆在这两点间的一段劣弧的长度.
我们把这个弧长叫做两点的
球面距离
No. 2
球面上两点之间的最短连线的长度,就是经过这两点的大圆在这两点间的一段劣弧的长度.
我们把这个弧长叫做两点的
球面距离
求法如下:
如右图,设若角AOB(球心角)为θ,大球的半径为R,则
球面距离
为Rθ
球面距离
计算公式:d(x1,y1,x2,y2)=r*arccos(sin(x1)*sin(x2)+cos(x1)*cos(x2)*cos(y1-y2))
Containing Phrases
sphere event equation