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Macaulay2Doc :: map

map -- make a map

Synopsis

Description

The function map provides a general mechanism for constructing a map (homomorphism) between rings (a ring map), modules (a matrix), chain complexes (a chain complex map), or between objects in other categories.

See also the function matrix, which focuses on creating new matrices from rectangular arrays of ring elements or matrices.

Ways to use map :

Menu

Creating a map (matrix) between modules

Creating a map between modules, where the source module is computed

Creating a map with a different degree

Creating a map between modules over different rings

Creating a map between rings

Creating a map between chain complexes