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[MUG] _EnvTryHard , _EnvSolveOverReals etc
| [MUG] _EnvTryHard , _EnvSolveOverReals etc |
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Author: Andre Van Moer
Posted: Mon, 16 Dec 2002 01:10:03 +0100
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>> From: "Andre Van Moer" />
Hello,
Probably a simple question:
Where may I find an exhaustive list of the Names beginning with the
underscore character like _EnvTryHard and _EnvSolveOverReals ? I could
not find it in the manuals nor trough the Help & F1 of Maple, the only
thing I get is Names beginning with the underscore character,
Description :
* Any symbol beginning with an underscore is effectively reserved
for use only by library code. It is not available to users.
Failure to observe this rule leads to undefined (and often
strange) results.
Help on solve and RealDomain contains informations about _EnvTryHard
and _EnvSolveOverReals but I would like to have a complete list.
WBR,
Andre
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Andre Van Moer
UNIVERSITE LIBRE DE BRUXELLES
Faculte des Sciences
Campus du Solbosch
CP160/02
avenue F.D. Roosevelt 50
1050 BRUXELLES
BELGIUM
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| [MUG] Re: _EnvTryHard , _EnvSolveOverReals etc |
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Author: Maple User Group
Posted: Fri, 20 Dec 2002 14:20:02 -0500
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>> From: Maple User Group />
>>From: "Andre Van Moer" />
>Where may I find an exhaustive list of the Names beginning with the
>underscore character like _EnvTryHard and _EnvSolveOverReals ?
-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
Date: Tue, 17 Dec 2002 14:34:05 -0800
To: />
From: David Harrington />
Subject: _EnvTryHard , _EnvSolveOverReals etc
anames(names) has some of them.
-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
From: "Dr Francis J. Wright" />
To: />
Subject: _EnvTryHard , _EnvSolveOverReals etc
Date: Wed, 18 Dec 2002 18:28:57 -0000
You can find the names beginning with _ currently in use as follows. I
*think* this will check all relevant names. The following output comes from
a new Maple 8 session:
> select(x->convert(x,string)[1]="_", [unames(),anames('anything')]);
[_syslib, _X, _Y, _Z, _xml, _maplet, _treeMatch, _jvm, _unify]
You can execute this at any time to check the names currently in use, which
will change during a maple session.
The reason why I have converted the symbols to strings is to avoid
artificially using the name _ itself, as happens with this version:
> select(x->substring(x,1)=_, [unames(),anames('anything')]);
[_syslib, _, _X, _Y, _Z, _xml, _maplet, _treeMatch, _jvm, _unify]
However, just running the command has probably already introduced some names
what would not otherwise have been in use.
To check all names that could in principle be used would be difficult,
because code is loaded dynamically and names can be generated dynamically.
You might get some useful information by searching the Maple library using
something like grep (outside of Maple), but that's probably not the kind of
solution you're looking for!
Francis
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