+**Extremum** is a point where a [Function](/wiki/function) attains its highest or lowest value. These crucial points, whether a [Maximum](/wiki/maximum) or a [Minimum](/wiki/minimum), define the peaks and valleys within a domain, revealing a function's behavior.
+## See also
+- [Calculus](/wiki/calculus)
+- [Optimization](/wiki/optimization)
+- [Derivative](/wiki/derivative)
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