This site is supported by donations to The OEIS Foundation.

# Constant function

From OeisWiki

**Constant functions** are those functions which assign to each point in their domain of definition the same "constant" value of the codomain,

If *B* is a ring, then the set of all constant functions from *A* to *B* (for any arbitrary non-empty *A*) is a **subring** of the ring of functions from *A* to *B*, isomorphic to *B*.

This article page is a

**stub**, please help by expanding it.

Two important constant functions in the OEIS are A000004 (where for all ) and A000012 ().