angle_btw               Angle between two n-dimensional vectors.
angle_deltas            Get angles between average cluster direction
                        and cluster-supporting lines
clucenters              Determine cluster centers using the uniform
                        distribution
clugen                  Generate multidimensional clusters
clumerge                Merges the fields (specified in 'fields') of
                        two or more data sets
clupoints_n             Create points from their projections on a
                        cluster-supporting line
clupoints_n_1           Create points from their projections on a
                        cluster-supporting line
clupoints_n_1_template
                        Create points from their projections on a
                        cluster-supporting line
clusizes                Determine cluster sizes, i.e., the number of
                        points in each cluster
fix_empty               Certify that, given enough points, no clusters
                        are left empty
fix_num_points          Certify that array values add up to a specific
                        total
llengths                Determine length of cluster-supporting lines
points_on_line          Determine coordinates of points on a line
rand_ortho_vector       Get a random unit vector orthogonal to 'u'.
rand_unit_vector        Get a random unit vector with 'num_dims'
                        components.
rand_vector_at_angle    Get a random unit vector at a given angle with
                        another vector.
