14 Mar
2009
14 Mar
'09
2:58 p.m.
All us Fortran II survivors know this issue well ... This is the "function" versus "routine" argument: (1) a routine can have no arguments but (2) can't return a value. This where CALL comes from. Sent from my iPhone Steve Stevenson On Mar 13, 2009, at 7:29, Andrew Stacey <andrew.stacey@math.ntnu.no> wrote:
(a lot snipped) In class today I was discussing functions with domain the empty set. The students don't have much background in formal set theory (and none in category theory though I'm doing my best to sneak it in where I can) so they were trying to get to grips with the idea that the _are_ functions from the empty set, but just not very many of them.