http://netvouz.com/narky/tag/bijection?feed=rss narky's bookmarks tagged "bijection" on Netvouz http://en.wikipedia.org/wiki/Bijection In mathematics, a bijection, or a bijective function is a function f from a set X to a set Y with the property that, for every y in Y, there is exactly one x in X such that f(x) = y. Alternatively, f is bijective if it is a one-to-one correspondence between those sets; i.e., both one-to-one (injective) and onto (surjective).[1] (See also Bijection, injection and surjection.) Educational > Mathematics > Ideas/Explanations/Wiki or Mathworld lookups narky Mon, 30 Apr 2007 02:38:51 GMT http://en.wikipedia.org/wiki/Bijection%2C_injection_and_surjection In mathematics, injections, surjections and bijections are classes of functions distinguished by the manner in which arguments (input expressions from the domain) and images (output expressions from the codomain) are related or mapped to each other. Educational > Mathematics > Ideas/Explanations/Wiki or Mathworld lookups narky Tue, 01 May 2007 02:47:52 GMT