input set
in mathematics the set on which a partial function acts, a superset of the domain of a function or relation that may include some inputs for which the function is not defined
en-US/ˈɪnˌpʊt ˈsɛt/
en-GB/ˈɪnpʊt ˈsɛt/
in mathematics the set on which a partial function acts, a superset of the domain of a function or relation that may include some inputs for which the function is not defined