# Talk:List of partial functions

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DaniilFrumin (Talk | contribs) (New page: Should we also point out under which circumstances those functions behaviours are undefined? --~~~~) |
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--[[User:DaniilFrumin|DaniilFrumin]] 11:28, 12 October 2012 (UTC) | --[[User:DaniilFrumin|DaniilFrumin]] 11:28, 12 October 2012 (UTC) | ||

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+ | What does it mean to say that ''error'' and ''undefined'' are "not even partial"? As far as I know, a function is either total or partial. If a function is not defined for any point, surely it is partial? | ||

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+ | -- Rcaetano | ||

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+ | @Rcaetano I meant that they are not defined at any point --- the only purpose of these functions is to signal a pure exception. I don't know what the terminology is for this --- please update with the proper terminology if you know what it is :-) | ||

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+ | --[[User:Dave4420|Dave4420]] 16:45, 13 October 2012 (UTC) |

## Latest revision as of 16:45, 13 October 2012

Should we also point out under which circumstances those functions behaviours are undefined?

--DaniilFrumin 11:28, 12 October 2012 (UTC)

What does it mean to say that *error* and *undefined* are "not even partial"? As far as I know, a function is either total or partial. If a function is not defined for any point, surely it is partial?

-- Rcaetano

@Rcaetano I meant that they are not defined at any point --- the only purpose of these functions is to signal a pure exception. I don't know what the terminology is for this --- please update with the proper terminology if you know what it is :-)

--Dave4420 16:45, 13 October 2012 (UTC)