/* top */Spelling, grammar, and general fixes
An '''operator''' is a
map from function space to function space. If the range of an operator is on the [[real line]] or in the [[complex plane]], the operator is usually called a [[ function]] al instead.
An '''operator''' is also a person who makes phone connections, though this practice is becoming less common as the process becomes more automated.
More generally, an '''operator''' can refer to anyone who operates heavy or complicated [[machinery]]. Examples: [[forklift]] operator, [[radar]] operator, [[system]] operator ([[sysop]]).