October 2002 - PURRS-devel - BUGSENG Mailman

[Fwd: Re: print_latex() bug]
by Roberto Bagnara 25 Oct '02

25 Oct '02

-------- Original Message -------- Subject: Re: print_latex() bug Date: Fri, 25 Oct 2002 16:45:58 +0200 From: Christian Bauer <cbauer(a)zino.physik.uni-mainz.de> Reply-To: ginac-list(a)zino.physik.uni-mainz.de To: ginac-list(a)zino.physik.uni-mainz.de References: <3DB6639B.E8526EA4(a)prmat.math.unipr.it> Hi! On Wed, Oct 23, 2002 at 10:53:47AM +0200, Alessandro Zaccagnini wrote: > the expression `p' is assigned the value 1/2-1/2*I, but then it is > transformed into the following latex form: \frac{1}{2}\frac{-1}{2} i Fixed. Negative fractions are now output as -\frac{n}{d} instead of \frac{-n}{d} (the rest of the code seemed to expect this behavior; this is why the plus sign was missing). Bye, Christian -- / Coding on PowerPC and proud of it \/ http://www.uni-mainz.de/~bauec002/ -- Prof. Roberto Bagnara Computer Science Group Department of Mathematics, University of Parma, Italy http://www.cs.unipr.it/~bagnara/ mailto:bagnara@cs.unipr.it

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purrs/tests gosper_driver.cc
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 16:01:43 Modified files: tests : gosper_driver.cc Log message: Fixed a name of variable. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/tests/gosper_driver.cc.diff…

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purrs/tests recurrences
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 15:49:16 Modified files: tests : recurrences Log message: Uncommented first order recurrences with variable coefficient. Fixed a solution. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/tests/recurrences.diff?cvsr…

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purrs/tests gosper_driver.cc
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 15:48:19 Modified files: tests : gosper_driver.cc Log message: Fixed the call to function `gosper()'. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/tests/gosper_driver.cc.diff…

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purrs/tests heap
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 12:14:41 Modified files: tests : heap Log message: Substituted `n' with `y' in the first order recurrence relations with variable coefficients. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/tests/heap.diff?cvsroot=pur…

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purrs/src gosper.cc gosper.hh
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 12:13:25 Modified files: src : gosper.cc gosper.hh Log message: Modifies in according with the function `solve_variable_coeff_order_1()'. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/src/gosper.cc.diff?cvsroot=… http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/src/gosper.hh.diff?cvsroot=…

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purrs/src rr_solver.cc
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 12:12:07 Modified files: src : rr_solver.cc Log message: Activated the function in order to solve first order recurrence relation with variable coefficient. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/src/rr_solver.cc.diff?cvsro…

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purrs/src Expr.cc
by Tatiana Zolo 25 Oct '02

25 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-25 08:57:13 Modified files: src : Expr.cc Log message: Fixed a bug: the empty product is 1. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/src/Expr.cc.diff?cvsroot=pu…

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[Fwd: Re: Problems with ginsh]
by Roberto Bagnara 24 Oct '02

24 Oct '02

-------- Original Message -------- Subject: Re: Problems with ginsh Date: Thu, 24 Oct 2002 19:06:58 +0200 From: Christian Bauer <cbauer(a)zino.physik.uni-mainz.de> Reply-To: ginac-list(a)zino.physik.uni-mainz.de To: ginac-list(a)zino.physik.uni-mainz.de References: <3DB3FC9A.D6F61442(a)prmat.math.unipr.it> Hi! On Mon, Oct 21, 2002 at 03:09:45PM +0200, Alessandro Zaccagnini wrote: > I was working with ginsh and the following happened > > > a = 1 + x - x^2; > 1+x-x^2 > > b = (1+sqrt(5))/2; > 1/2+1/2*sqrt(5) > > subs(a,x==b); > 3/2-(1/2+1/2*sqrt(5))^2+1/2*sqrt(5) > > expand(%); > 5/4-1/4*5 Fixed. Bye, Christian -- / Coding on PowerPC and proud of it \/ http://www.uni-mainz.de/~bauec002/ -- Prof. Roberto Bagnara Computer Science Group Department of Mathematics, University of Parma, Italy http://www.cs.unipr.it/~bagnara/ mailto:bagnara@cs.unipr.it

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purrs TODO.tex
by Tatiana Zolo 24 Oct '02

24 Oct '02

CVSROOT: /cvs/purrs Module name: purrs Changes by: zolo(a)cs.unipr.it 2002-10-24 19:12:16 Modified files: . : TODO.tex Log message: Added the problem about the initialization mechanism of the symbolic functions that we want to signal to ginac. Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/TODO.tex.diff?cvsroot=purrs…

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