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[MUG] D operator applied to Maple procedures
| [MUG] D operator applied to Maple procedures |
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Author: Roland Winkler
Posted: 27/10/2000 09:11:23 GDT
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>> From: Roland Winkler
Hi Muggers
I want to do something like
mtaylor (e, {x})
where the expression e contains a subexpression of the form
f(e_1, e_2, ... e_n)
and one or several subexpressions e_i depend on x. The point is that
f is a fairly complicated Maple procedure. So when mtayolor applies
the D operator to my procedure f, I just get the message
Error, (in D/procedure) index out of range: function takes only 0
arguments
Well, I know how the partial derivatives of my function f are
defined. I found out that apprarently it is possible to do define a
procedure D/f which will be used by the D operator. But I couldn't
find any documentation for it. Which arguments are passed to the
function D/f? What should be returned by this procedure?
Thanks a lot for your help.
Roland
--
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Dr. Roland Winkler
Lst. fuer Theoretische Festkoerperphysik Phone ++49-9131-85 28834
Institut fuer Technische Physik III Fax ++49-9131-85 28833
Universitaet Erlangen-Nuernberg
Staudtstr. 7
D-91058 Erlangen e-mail:
Germany http://www.tfkp.physik.uni-erlangen.de/
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