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三面角余弦定理 在三面角O-ABC中，设二面角B-OA-C为∠OA，则有： cosBOC=cosAOBcosAOC+sinAOBsinAOCcosOA import pandas as pd import math # data = pd.read_csv() def Calculate_Azimuth(lat1, lon1, lat2, lon2): lat1_rad = lat1 * math.pi / 180 lon1_rad = lon1 * math.pi / 180 lat

// An highlighted block import pandas as pd __all__ = ['encode','decode','bbox','neighbors'] _base32 = '0123456789bcdefghjkmnpqrstuvwxyz' #10进制和32进制转换，32进制去掉了ailo _decode_map = {} _encode_map = {} for i in range(len(_base32)): _decode_map[_base32[i]]

GetX的类 package cf.indoor.Coordinate; // xy坐标的类 public class GetX { double yc; double xc; public GetX(double xc, double yc) { this.yc = yc; this.xc = xc; } public void setYc(double yc) { this.yc = yc; } public void setXc(double xc) {