+Mathematical constants are special, unchanging [Numbers](/wiki/Number) that arise naturally in mathematics. They encapsulate fundamental properties of geometry, growth, and other structures, such as [Pi](/wiki/Pi) for circles and [Euler's number](/wiki/Euler%27s_number) for exponential change.
+## See also
+- [Golden ratio](/wiki/Golden_ratio)
+- [Constant](/wiki/Constant)
+- [Mathematics](/wiki/Mathematics)