Re: $gensym

Oh, sorry---I sent a blank email, I think.  Likely I intended to say that if you use new_variable to define 1000s of new symbols, the fact database can grow so large that you might see some operators slow.

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From: Barton Willis via Maxima-discuss<mailto:[email protected]>
Sent: Sunday, November 5, 2023 12:32 PM
To: [email protected]<mailto:[email protected]>; Camm Maguire<mailto:[email protected]>; Robert Dodier<mailto:[email protected]>; [email protected]<mailto:[email protected]>
Cc: <[email protected]><mailto:[email protected]>
Subject: Re: [Maxima-discuss] $gensym

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From: Henry Baker <[email protected]>
Sent: Sunday, November 5, 2023 12:16:56 PM
To: Barton Willis <[email protected]>; Camm Maguire <[email protected]>; Robert Dodier <[email protected]>; [email protected] <[email protected]>
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Subject: RE: [Maxima-discuss] $gensym

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Re: new_variable



Cool!



How come the 'gensym' documentation doesn't mention 'new_variable' ?



-----Original Message-----
From: Barton Willis <[email protected]>
Sent: Nov 5, 2023 10:05 AM
To: Henry Baker <[email protected]>, Camm Maguire <[email protected]>, Robert Dodier <[email protected]>, [email protected] <[email protected]>
Cc: <[email protected]> <[email protected]>
Subject: RE: [Maxima-discuss] $gensym



You might be able to use the CL function gensym to define a function that does what you want; see



http://clhs.lisp.se/Body/f_gensym.htm<https://urldefense.com/v3/__http:/clhs.lisp.se/Body/f_gensym.htm__;!!PvXuogZ4sRB2p-tU!Bkj4NkGPyXKJCkOlvACSKCtbJG0PkfoU6vaEWDxl1RSC3dz7XGKrNWKojcFr479KSCsBc8ckvZzAIALy$>



Alternatively:



(%i7) load(to_poly)$



(%i8) new_variable('real);

(%o8) %r510



(%i9) new_variable('complex);

(%o9) %c511



(%i10)          featurep(%,'complex);

(%o10) true



(%i11) new_variable('integer);

(%o11)          %z512



(%i12)          featurep(%,integer);

(%o12) true



--Barton

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