An even function
Definition: a Function is called
is called steam, if it is a domain symmetric with respect to a coordinate axis any
from its scope.
A property of even functions
The graph of an even function is symmetrical about the axis
Examples of even functions
![Графік функції косинуса](http://cdn.cubens.com/contents/pictures/even-and-odd-functionsі-1.png)
A property of odd functions
The graph of an odd function is symmetric about the origin
Examples of odd functions
![Графік синуса](http://cdn.cubens.com/contents/pictures/even-and-odd-functionsі-2.png)