-// Computes the consine distance between u and v
-// https://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.distance.cosine.html#scipy.spatial.distance.cosine
-double distance_cosine(const Eigen::VectorXd& u, const Eigen::VectorXd& v);
-
-// Computes the Euclidean distance between u and v
-// https://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.distance.euclidean.html#scipy.spatial.distance.euclidean
-double distance_euclidean(const Eigen::VectorXd& u, const Eigen::VectorXd& v);
-