Non-convex is also referred to as concave. Convex and non-convex both define the types of curvature. Convex defines the curvature that extends outwards or bulges out. On the other hand, non-convex defines a curvature that extends or bends inward. Thus, the extension of the curve is used to differentiate between the two forms. Convex and non-convex are often used as adjectives to define the entities associated with the shape or curve defined by them.
Montezuma is a city in Gray County, Kansas, United States. As of the 2010 census, the city population was 966.
In 1502 Montezuma succeeded his uncle Ahuitzotl as the leader of an empire that had reached its greatest extent, stretching to what is now Honduras and Nicaragua, but that was weakened by the resentment of the subject tribes to the increasing demands for tribute and victims for the religious sacrifices.