Even and odd functions: Difference between revisions

Revision as of 16:26, 8 September 2004

Revision as of 20:06, 24 October 2004

Line 5:

Let ''f''(''x'') be a [[real number|real]]-valued function of a real variable. Then ''f'' is '''even''' if the following equation holds for all real ''x'':

:''f''(−-''x'') = ''f''(''x'')

Geometrically, an even function is [[symmetry|symmetric]] with respect to the ''y''-axis.