Category:Even Functions

From ProofWiki
Jump to navigation Jump to search

This category contains results about Even Functions.


Let $X \subset \R$ be a symmetric set of real numbers:

$\forall x \in X: -x \in X$


A real function $f: X \to \R$ is an even function if and only if:

$\forall x \in X: \map f {-x} = \map f x$

Also see