Re: [Axiom-developer] Of possible interest to Axiom

2008-09-18 Thread Doug Stewart
root wrote: The latest documentation work is creating a full graph of the Axiom algebra as part of the bookvol10* buildout. This could be useful in guiding your work in building a CLOS version. I have been watching your progress and bookvol10 is looking very good. It should be

Re: [Axiom-developer] Of possible interest to Axiom

2008-09-18 Thread Doug Stewart
root wrote: The latest documentation work is creating a full graph of the Axiom algebra as part of the bookvol10* buildout. This could be useful in guiding your work in building a CLOS version. I have been watching your progress and bookvol10 is looking very good. It should be fairly eas

Re: [Axiom-developer] Schaums-Axiom difference

2008-05-07 Thread Doug Stewart
Martin Rubey wrote: root <[EMAIL PROTECTED]> writes: My best guess is that the problem lies in the code that fails to simplify %e^(n log(x)) to x^n. As I said before, I'm not sure whether this is really a simplification. After all, the *definition* of a^b is %e^(a*log b) I think

Re: [Axiom-developer] Schaums help

2008-05-03 Thread Doug Stewart
Doug Stewart wrote: root wrote: My copy of Schaums (1968, printing 4) shows 14:334: int(1/(x*sqrt(x^n-a^n)),x) == 2/(n*sqrt(a^n))*acos(sqrt(a^n/x^n)) It seems this cannot be the answers. Can someone with a later version please check for a typo? Tim

Re: [Axiom-developer] Schaums help

2008-05-02 Thread Doug Stewart
root wrote: My copy of Schaums (1968, printing 4) shows 14:334: int(1/(x*sqrt(x^n-a^n)),x) == 2/(n*sqrt(a^n))*acos(sqrt(a^n/x^n)) It seems this cannot be the answers. Can someone with a later version please check for a typo? Tim ___ Axiom-develope

Re: [Axiom-developer] Schaums help

2008-05-02 Thread Doug Stewart
[EMAIL PROTECTED] wrote: My copy of Schaums (1968, printing 4) shows 14:334: int(1/(x*sqrt(x^n-a^n)),x) == 2/(n*sqrt(a^n))*acos(sqrt(a^n/x^n)) It seems this cannot be the answers. Can someone with a later version please check for a typo? Tim ___ A

Re: [Axiom-developer] please check your Schaums

2008-04-28 Thread Doug Stewart
Bertfried Fauser wrote: Hi, am I stupid, why not just differentiating to see which expression is correct? In 14.661 Schaums claims: integral acoth(x/a) = x*acoth(x)+a/2*log(x^2-a^2) Axiom claims integral acoth(x/a) = x*acoth(x/a)+a/2*log(x^2-a^2)

Re: [Axiom-developer] please check your Schaums

2008-04-28 Thread Doug Stewart
A.M.Raportirenko wrote: Just a question. What is a book which you mansion as Schaum? Does you have any references? Anatoly On Monday 28 April 2008 09:08:30 [EMAIL PROTECTED] wrote: In 14.661 Schaums claims: integral acoth(x/a) = x*acoth(x)+a/2*log(x^2-a^2)

Re: [Axiom-developer] please check your Schaums

2008-04-28 Thread Doug Stewart
[EMAIL PROTECTED] wrote: In 14.661 Schaums claims: integral acoth(x/a) = x*acoth(x)+a/2*log(x^2-a^2) Axiom claims integral acoth(x/a) = x*acoth(x/a)+a/2*log(x^2-a^2) ^^ Is this a Schaums typo? Tim ___

Re: [Axiom-developer] 20080426.01.tpd.patch (CATS Schaums-Axiom equivalence testing (26-28))

2008-04-27 Thread Doug Stewart
[EMAIL PROTECTED] wrote: On at least 2 of these problems Schaums and Axiom seem to disagree on the results, namely: 14:569 SCHAUMS AND AXIOM DISAGREE? 14:571 SCHAUMS AND AXIOM DISAGREE? as the compute result is not constant but does not seem to have a simplification that eliminates x. This

Re: [Axiom-developer] 20080416.01.tpd.patch (CATS Schaums-Axiom equivalence testing (2-7))

2008-04-17 Thread Doug Stewart
[EMAIL PROTECTED] wrote: Item 14:150 Schaums and Axiom DISAGREE BY A NON-CONSTANT in schaum7.input.pamphlet is particularly interesting because it appears that the derivative of Axiom's answer is the original integrand but the derivative of Schaum's answer is not, implying that Schaum's has a m

Re: [Axiom-developer] Axiom and the Numerical Mathematics Consortium

2008-01-17 Thread Doug Stewart
[EMAIL PROTECTED] wrote: I have been concentrating on Axiom's numerical capabilities. The last patch is the beginnings of regression tests against Abramowitz and Stegun (1985) and Zwillinger's CRC Standard (2003). I've also created firefox hyperdoc pages for the gamma function standard from the

Re: [Axiom-developer] Re: AMS Notices: Open Source Mathematical Software

2007-11-26 Thread Doug Stewart
Linux because they are there, but they aren't on my Windows desktop at work and probably never will be. I disagree with you on the statement " I don't think as a user that either Firefox or OpenOffice are of sufficient quality or maturity to be use

Re: [Axiom-developer] Axiom, FriCAS, forks and teeth

2007-07-11 Thread Doug Stewart
Gabriel Dos Reis wrote: On Wed, 11 Jul 2007, C Y wrote: | | --- Gabriel Dos Reis <[EMAIL PROTECTED]> wrote: | | > I believe that the core of the system would have to change, evolved, | > rewritten, rethinked. | > The future -- at least the near future -- is in parallel/distributed | > computa

Re: [Axiom-developer] Coming Soon: * Aldor open source release

2007-03-04 Thread Doug Stewart
Bill Page wrote: On March 4, 2007 9:46 PM Doug Stewart wrote: Bill Page wrote: nyone have any idea exactly what "v. 1.1-rc" refers? Note: The current version of the Aldor compiler is: v1.0.3. Where can we find v. 1.1-rc? Regards, Bill Page. try http://www

Re: [Axiom-developer] Axiom Workshop - Poster available

2006-03-10 Thread Doug Stewart
Martin Rubey wrote: For those who still have not spotted the mail: From April 27 - April 29 there will be a Workshop on Axiom. We do have great speakers, unfortunately there is not much audience so far. I'd like to encourage *everybody* to come. Meanwhile a poster is available at www.mat.

Re: [Axiom-developer] about Expression Integer

2006-02-20 Thread Doug Stewart
and has help me muchly. Could someone in the know take some material from this thread and use it in the manual? I know that just reading this has opened my eyes. Doug Stewart ___ Axiom-developer mailing list Axiom-developer@nongnu.org http

Re: [Axiom-developer] Aldor?

2006-01-12 Thread Doug Stewart
I live in London near the uwo. Is there any point in me going to see him? If I did set up an appointment what would you want me to say to him? Doug Stewart P.Eng. UWO Graduate ___ Axiom-developer mailing list Axiom-developer@nongnu.org http

Re: [Axiom-developer] B#

2005-11-20 Thread Doug Stewart
udents a spared many hrs. of trouble shooting because of strong Typing of C#. :-) I am new to this list, and was wondering how Haskell can be used to write Axiom programs? Isn't Axiom written in Lisp? Doug Stewart ___ Axiom-dev

[Axiom-developer] [Axiom-mail] [Axiom-mail] [Axiom-mail] A newby question about eval andExpression

2005-11-13 Thread Doug Stewart
Changes http://page.axiom-developer.org/zope/mathaction/AxiomMail/diff -- William Sit wrote: >Changes http://page.axiom-developer.org/zope/mathaction/AxiomMail/diff >-- > > >Doug Stewart wrote: > > > >>But it is a constant How can I tell axiom that it is a co

[Axiom-developer] [Axiom-mail] A newby question about eval and Expression

2005-11-13 Thread Doug Stewart
Changes http://page.axiom-developer.org/zope/mathaction/AxiomMail/diff -- Martin Rubey wrote: >Dear Doug, > >there are two issues in your code: > > >Doug Stewart writes: > > > >>)clear all >>digits 20 >>-- n:=x^3+a1*x^2+a2*x+a3 ::Polynomial Fractio

[Axiom-developer] [Axiom-mail] [Axiom-mail] [Axiom-mail] [Axiom-mail] [Axiom-mail] A newby question about eval and Expression

2005-11-12 Thread Doug Stewart
rst and second order poly. It works if the coeff are nice integers but I want it for floats. So I am doing it symbolicly and then trying to put in my numbers at the last. I am doing this mainly to learn Axiom. I can get my numbers real easy in Octave. Doug Doug Stewart -- forwarded from h

[Axiom-developer] [Axiom-mail] [Axiom-mail] [Axiom-mail] A newby question about eval and Expression

2005-11-12 Thread Doug Stewart
11,x1) this gives an error message: The form on the left hand side of an assignment must be a single variable ... supporting the setelt operation. Doug Stewart -- forwarded from http://page.axiom-developer.org/zope/mathaction/[EMAIL PROTECTED] ___ Axiom

[Axiom-developer] [Axiom-mail] A newby question about eval and Expression

2005-11-12 Thread Doug Stewart
think the Expression thingy is bothering me later on in my program. Any help would be nice. Doug Stewart ___ Axiom-mail mailing list Axiom-mail@nongnu.org http://lists.nongnu.org/mailman/listinfo/axiom-mail -- forwarded from http://page.axiom-developer.org