ffwythiant pŵer

== Welsh == === Noun === ffwythiant pŵer m (plural fwythiannau pŵer, not mutable) (mathematics) power function === References === Delyth Prys; J.P.M. Jones; Owain Davies; Gruffudd Prys (2006), Y Termiadur: termau wedi'u safoni; standardised terminology‎[1] (in Welsh), Cardiff: Awdurdod cymwysterau, cwricwlwm ac asesu Cymru (Qualifications curriculum & assessment authority for Wales), →ISBN