Extremum
From Encyclopedia of Mathematics - Reading time: 1 min
A maximum or minimum value of a real-valued function. (Cf. Maximum and minimum points.) In the calculus of variations the term "extremum" is also used in the study of greatest or smallest values of a functional.
Comments[edit]
Cf. also Maximum and minimum of a function.
In variational calculus the term extremal for a curve on which a function(al) attains its maximum (or minimum) values is often used.
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