Talk:Map (mathematics)

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[edit] Busted symbols

Some symbols in the article do not appear in the intended way as hooked or two-headed arrows. Bo Jacoby 11:07, 20 October 2005 (UTC)

[edit] Content consolidated under function

Around 1/16/06 [1] most meaningful content from this page was moved to function (mathematics), since 'map' and 'function' are largely synonymous. The consolidation will help avoid duplication.

There are several redirects that point to map, that should now point to function, where the content they refer to now lives, e.g. bijective. I've fixed some of these.

Anyone contemplateing adding content here, rather than under function, should consider the consequences: links, duplication with function, etc. LarryLACa 03:00, 20 January 2006 (UTC)

Much of this information that was merged, especially the stuff from Bijection, injection and surjection, has later been removed from those articles. Any merging of these pages should be done via the AFD process, as there is NOT consensus that they should be merged. Perel 03:16, 6 December 2006 (UTC)

[edit] Basics

Every map is a correspondence (mathematics).218.133.184.93 05:37, 5 November 2007 (UTC)

So? Why is this not obvious from what's already there. — Arthur Rubin | (talk) 08:22, 5 November 2007 (UTC)
And why does it not require a source for it to appear in the article? — Arthur Rubin | (talk) 08:23, 5 November 2007 (UTC)

[edit] Simply untrue

A function is something whose range is a one dimensional.

For example the object f : \mathbb{R}^m \to \mathbb{R}^n where m,n \in \mathbb{N}, is called a function if n = 1 and a map (or mapping) if n > 1. Dharma6662000 11:21, 1 December 2007 (UTC)

I don't think I've ever seen that usage. — Arthur Rubin | (talk) 16:51, 1 December 2007 (UTC)

[edit] umm, what ?, please can you explain

um, an introduction and an example(or two?) applicable to a real world situation may aid understanding here, i'm not particularly uneducated - but understanding this article, i am not. :) —Preceding unsigned comment added by 80.42.179.40 (talk) 11:01, 21 February 2008 (UTC)

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