function space
set of functions of a given kind from a set X to a set Y; it is called a space because in many applications it is a topological space (including metric spaces), a vector space, or both
en-US/ˈfʌŋkʃən ˈspeɪs/
en-GB/ˈfʌŋkʃn ˈspeɪs/
set of functions of a given kind from a set X to a set Y; it is called a space because in many applications it is a topological space (including metric spaces), a vector space, or both