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球面距离是立体几何中七种直线距离之外的一种曲面上两点间的最短距离.由于涉及较多的数学知识和地理常识,所以它是所有距离中较难求解的一种距离,因而也是高考数学中的难点和冷点.随着高考试题命制改革的深入以及生产和生活实际的需
Spherical distance is the shortest distance between two points on a surface other than the distance between seven straight lines in solid geometry. Because it involves more mathematical knowledge and geographical knowledge, it is a distance that is difficult to solve in all distances. Therefore, it is also a difficulty and a cold spot in the mathematics of college entrance examination. With the deepening of reform of the high test title system and the actual needs of production and life