I was just wondering why functions can only have one output per input?

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- April 30th 2012, 12:54 PMNervousFunctions; How do they work?
I was just wondering why functions can only have one output per input?

- April 30th 2012, 01:01 PMMathoManRe: Functions; How do they work?
Because functions are defined that way. All functions are mappings. There are mappings that are not functions.

- April 30th 2012, 01:02 PMPlatoRe: Functions; How do they work?
- April 30th 2012, 01:04 PMPlatoRe: Functions; How do they work?
Where did you get that? See this page.

- April 30th 2012, 01:08 PMMathoManRe: Functions; How do they work?
Maybe a relation is a better term - English is not my native language so unfortunately things get lost in translation.

- April 30th 2012, 01:10 PMMathoManRe: Functions; How do they work?
- May 1st 2012, 10:42 AMHallsofIvyRe: Functions; How do they work?
Well, that Wikipedia entry not withstanding, I feel that "mapping" is a much vaguer term than "function".