rp = cmath.sqrt(R ** 2 - R0 ** 2 * (np.sin(GLON * np.pi / 180)) ** 2) + R0 * np.cos(GLON * np.pi / 180)
时间: 2023-10-03 13:06:23 浏览: 90
简单计算器,可以实现+ - * / 平方 开方及三角函数的功能。
The above code calculates the value of rp, which represents the distance from the center of the Earth to a point on the Earth's surface at a given longitude (GLON) and a given radius (R) of the Earth.
The first line of the code uses the cmath.sqrt function to calculate the square root of the difference between R squared and R0 squared times the sine of the given longitude (GLON) squared. Here, R0 represents the radius of the Earth at the equator.
The second line of the code multiplies R0 by the cosine of the given longitude (GLON) in radians. This gives the distance from the center of the Earth to the point on the surface along the longitude line.
Together, these calculations give the total distance from the center of the Earth to the point on the surface at the given longitude.
阅读全文