Triangle中角度计算 Angle of vertex of triangle 1. using cosine rule Angle of vertex of triangle 1. using cosine rule 计算公式: Using_cosine rule C++ codevoid internal_angles(const Eigen::MatrixXd & V, const Eigen::MatrixXi & F, Eigen::MatrixXd & A) { int F_nums = F.rows(); Eigen::MatrixXd L_sq