Your cheap flights to Puerto Vallarta take you to a city dedicated to giving you a fun, relaxing vacation. The biggest attraction is the beach. But when you wish to do something more, you have endless options. Many spas, like Healing Hands, pamper and care for you. Davannayoga allows you to stretch and stay fit.
Definition. A metric space is a set X together with a function d (called a metric or distance function) which assigns a real number d (x, y) to every pair x, y X satisfying the properties (or axioms): 1  d (x, y) 0 and d (x, y) = 0 x = y, 2  d (x, y) = d (y, x), 3  d (x, y) + d (y, z) d (x, z).
4. Mathematics A topological space in which each point has a neighborhood that is equivalent to a neighborhood in Euclidean space. The surface of a sphere is a two-dimensional manifold because the neighborhood of each point is equivalent to a part of the plane. tr.v. manÂ·iÂ·foldÂ·ed, manÂ·iÂ·foldÂ·ing, manÂ·iÂ·folds. 1.