Main Page | See live article | Alphabetical index An extreme value or record is a maximum or minimum. For a differentiable function a necessary condition is that it is a stationary point. In the case of a general partial order one should not confuse a least element (smaller than all other) and a minimal element (nothing is smaller). See also Extreme value theory, Extreme weather. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.