An difríocht idir athruithe ar: "Feidhm (matamaitic)"

Is é Leibnitz, sa bhliain [[1673]], a thabhairtthug dúinn an focal "feidhm" ("function" as Béarla)<ref>Morris Kline. Mathematical Thought from Ancient to Modern Times, Volume 1. Oxford University Press, New York, Oxford. ISBN 0-19-506135-7. 1972. p.340</ref>.