Talk:Functional notation

Copyright? Public domain
This edit need to be rolled back 17:22, 30 August 2013‎ Wcherowi (contribs)‎ ... should also be re-merged into Functional (mathematics) reversing User:Slawekb (sockpuppet, User:Sławomir Biały) disruptive split off [seems to editing to prove a point] ... and redirected there.

Text is from 1875 and is in the public domain (but, for the reader put in the citation links). It is also not a copy and paste, as I had to reformat it with math tags, also. --J. D. Redding 23:29, 30 August 2013 (UTC)