Talk:Signals and Systems/Periodic Signals

Mr Moderator,

Please accept my thanks for your article on Signals and Systems/Periodic Signals, and a comment: In Common Periodic Signals > Sinusoidal wave, there is a lack.

With regards and friendship, Georges Theodosiou, chretienorthodox1@gmail.com --82.127.49.214 (discuss) 13:12, 23 November 2015 (UTC)