RE: Greatest element in list
- To: mathgroup at smc.vnet.net
- Subject: [mg30493] RE: [mg30474] Greatest element in list
- From: "Wolf, Hartmut" <Hartmut.Wolf at t-systems.de>
- Date: Fri, 24 Aug 2001 04:05:52 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello Oliver,
as to the theorem you stated, I don't believe it. However, if you have in
your list e.g. an undefined symbol or something where numerical comparison
doesn't work, then you'll come to surprise.
In[1]:= list = Table[Random[Real, {0, 100}], {100}];
In[2]:=
(Position[#1, Max[#1]] & )[list = Append[list, "wake up"]]
Out[2]= {}
;-) Hartmut
> -----Original Message-----
> From: Oliver Friedrich [mailto:oliver.friedrich at tz-mikroelektronik.de]
To: mathgroup at smc.vnet.net
> Sent: Thursday, August 23, 2001 8:16 AM
> To: mathgroup at smc.vnet.net
> Subject: [mg30493] [mg30474] Greatest element in list
>
>
> Hi,
>
> what's the best way to get the position of the greatest
> number in list of
> reals? I've tried
>
> Position[#,Max[#]]&list
>
> but surprisingly, it doesn't work all the time, sometimes it
> returns an
> empty list. How is that, because a theorem says that a non
> empty set of real
> numbers must have at least one biggest element. So Max[#]
> can't be empty.
>
> Any solutions ?
>
> Oliver Friedrich
>
>