map (plural maps)
- A visual representation of an area, whether real or imaginary.
2012 March–April, Brian Hayes, “Pixels or Perish”, in American Scientist, volume 100, number 2, page 106:
- Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.
- A graphical representation of the relationships between objects, components or themes.
- (mathematics) A function.
- Let be a map from to
- The butterfly Araschnia levana.
- (Britain, old-fashioned) The face.
1960, P. G. Wodehouse, Jeeves in the Offing, chapter X:
- And as the eye rested on him, he too filled me with pity and terror, for his map was flushed and his manner distraught. He looked like Jack Dempsey at the conclusion of his first conference with Gene Tunney, the occasion, if you remember, when he forgot to duck.
- (board games, computer games) A predefined and confined imaginary area where a game session takes place.
- I don't want to play this map again!
For the most part, map and function are synonyms in mathematics, and are frequently used interchangably, however certain branches of mathematics sometimes use map in a specialised sense to mean a function that preserves some important property in that branch of mathematics, i.e. a morphism. For instance, in topology, map may specifically mean a continuous function, and in linear algebra it may specifically mean a linear transformation.
- To create a visual representation of a territory, etc. via cartography.
- To inform someone of a particular idea.
- (mathematics, transitive, followed by a "to" phrase) To act as a function on something, taking it to something else.
- maps to , mapping every to .