jscl-meditor-users Mailing List for jscl-meditor

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Innfamous James Brown Iwnterview
jscl-meditor is a java symbolic computing library with a text editor
frontend. Version 3.1 is out, in this release:

    * Packages for the following projects are added:

MathPiper - active fork of Yacas
Jasymca - Symbolic Calculator for Java
SymPy - Python library for symbolic mathematics

    * Most engines are enabled for java web start and available on-line
from the project web page

    * There is a new plotting facility which is used in Hartmath,
MathEclipse and Jasymca (more engines to come). It is based on SVG and
Batik and works as follows : as a "plot" expression is evaluated, it is
converted in SVG and pasted in the editor. The latter renders
automatically any expression enclosed in svg tags, as it already did for
MathML. Exports to PDF and XHTML are supported, in vector graphics

    * XML libraries are upgraded to their up-to-date versions, namely:

jeuclid-3.1.4
fop-0.95
batik-1.7

    * Version 1.0 of ScAS is made available

    * Some other engine upgrades are made:

sympy-0.6.4_beta2
hartmath-08pre2
matheclipse-0.0.7

    * Some transverse library interactions are considered : through its
Jython interface, the ScAS library can be used from the JAS engine. The
newly included JLinAlg library can be used from any engine with import
ability (i.e. Jython, BeanShell or Scala based ones, namely : JAS,
SymPy, JSCL, ScAS)

    * All engine packages are grouped together with the editor

    * The mathematical editor is turned into a general purpose script
editor : the chooser file filter is set to "accept all" (script
extensions, instead of just "txt") and the "math->evaluate" menu item is
changed into "script->run/evaluate". When no selection is made, the
whole script is run.

    * The document root of the treepad can be changed

Download the new release at:

http://downloads.sourceforge.net/jscl-meditor/meditor3.1.zip

jscl-meditor is a java symbolic computing library with a text editor
frontend. From version 3.0 onward, it is possible to substitute several
script-based engines to the standard one (JSCL).

Today a new engine is available based on the well-known Python-based CAS
SymPy, via Jython. Download it from:

http://downloads.sourceforge.net/jscl-meditor/meditor3.0-sympy.zip

news://news.gmane.org/gmane.comp.mathematics.jscl-meditor.announce
news://news.gmane.org/gmane.comp.mathematics.jscl-meditor.devel
news://news.gmane.org/gmane.comp.mathematics.jscl-meditor.user

On Fri, 25 Jun 2004 17:28:39 Dimitri Pissarenko wrote:
> Hello!
> 
> First of all, thanks for writing meditor. It's a great tool!
> 
> I'm using meditor primarily on my Palm. I use it to solve some
> exercises.
> 
> Sometimes, I want to show those solutions to someone else. Using 
> desktop version of meditor, I transform mathematical experssions I
> wrote on
> Palm into MathML, then put the whole stuff into an xhtml file, and
> then
> I can view the formulae in a MathML capable browser (Amaya or Mozilla
> or
> Mozilla Firefox).
> 
> All that works fine.
> 
> However, I need to perform several steps manually:
> 
> 1) Invoke "To MathML" operation on EVERY mathematical expression in
> the text
> 
> 2) Replace line feeds by "<br/>"
> 
> 3) Put the result of 1) and 2) into an xhtml template file with all
> MathML
> specific settings
> 
> 4) Surround each MathML block with <math
> xmlns="http://www.w3.org/1998/Math/MathML">
> and </math>
> 
> As you see, all of these steps can be automated.
> 
> I would like to know following:
> 
> a) Has someone already written some piece of software, which
> transforms
> a meditor file to XHTML without user intervention?
> 
> b) What is the best way to mark the expressions, which have to be
> converted
> to MathML? Begin and end markers like §§{{a, b}, {c, d}}§§ where all
> the 
> text between §§'s is transformed into MathML?
> 
> TIA
> 
> dap

Hello Dimitri,

I don't think anybody has already written a meditor to XHTML converter. 
The point is that there is no such thing as a meditor format. The format 
is .txt files. As you point out, one would need delimiters for math 
expressions.

As now, I was engaging in a "direct-to-web" way, as you can see with 
meditorworld : copy/paste the MathML code in a wiki textarea with <math> 
tags, and done. However there's still as many actions as math 
expressions, so this is still slow. Moreover the resulting text is big. 
I was thinking of TeX as a replacement, work is in progress at the 
mediawiki staff regarding MathML rendering of TeX expressions.

But I think your idea is good. I would have to add an "export->MathML" 
menu item to perform the automatic conversion. What about brackets [] as 
math expression delimiters ?

Raphael

Hello!

=46irst of all, thanks for writing meditor. It's a great tool!

I'm using meditor primarily on my Palm. I use it to solve some
exercises.

Sometimes, I want to show those solutions to someone else. Using=20
desktop version of meditor, I transform mathematical experssions I
wrote on
Palm into MathML, then put the whole stuff into an xhtml file, and
then
I can view the formulae in a MathML capable browser (Amaya or Mozilla
or
Mozilla Firefox).

All that works fine.

However, I need to perform several steps manually:

1) Invoke "To MathML" operation on EVERY mathematical expression in
the text

2) Replace line feeds by "<br/>"

3) Put the result of 1) and 2) into an xhtml template file with all
MathML
specific settings

4) Surround each MathML block with <math
xmlns=3D"http://www.w3.org/1998/Math/MathML">
and </math>

As you see, all of these steps can be automated.

I would like to know following:

a) Has someone already written some piece of software, which
transforms
a meditor file to XHTML without user intervention?

b) What is the best way to mark the expressions, which have to be
converted
to MathML? Begin and end markers like =A7=A7{{a, b}, {c, d}}=A7=A7 where =
all
the=20
text between =A7=A7's is transformed into MathML?

TIA

dap

Ryan,

This is available in version 1.0_03.

Raphael

On Mon, 17 May 2004 04:23:05 Ryan Eberly wrote:
> Raphael,
> 	Yes, that's what I need.
> 
> 		Thanks,
> 			Ryan.
> 
> > -----Original Message-----
> > From: jsc...@li... [mailto:jscl-meditor-
> > use...@li...] On Behalf Of rap...@fr...
> > Sent: Friday, May 14, 2004 9:50 AM
> > To: jsc...@li...
> > Cc: Ryan Eberly
> > Subject: Re: [Jscl-meditor-users] Equations vs Expressions.
> > 
> > Quoting Ryan Eberly <ry...@pr...>:
> > 
> > > Hi I am new to the mailing list.
> > >
> > >
> > >
> > > I've noticed that jscl-meditor handles expressions, but equations cause
> > a
> > > parsing exception.  Are there any plans to support equations?
> > >
> > >
> > >
> > > Obviously the equation,
> > >
> > >             X = 3
> > >
> > > Can be rewritten as the expression
> > >
> > >             X - 3
> > >
> > >
> > >
> > > However, I would like to be able to get the equation as mathML, then
> > > simplify it.
> > >
> > >
> > >
> > >       Thanks,
> > >
> > >               Ryan.
> > 
> > Hi Ryan,
> > 
> > Yes I could possibly add an Equation token in the grammar and have the
> > ToMathML
> > command expect an EquationOrExpression. Is that what you need ?
> > 
> > Raphael

Dear Open Source developer

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With many thanks for your participation,
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PS:
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We have set up the mailing list fa...@we... for this study. Please see http://fasd.ethz.ch/qsf/mailinglist_en.html for registration to this mailing list.

_______________________________________________________________________

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Swiss Federal Institute of Technology Zurich
8092 Zurich

Mail: benno.luthiger(at)id.ethz.ch
_______________________________________________________________________
Raphael,
	Yes, that's what I need.

		Thanks,
			Ryan.

> -----Original Message-----
> From: jsc...@li... [mailto:jscl-meditor-
> use...@li...] On Behalf Of rap...@fr...
> Sent: Friday, May 14, 2004 9:50 AM
> To: jsc...@li...
> Cc: Ryan Eberly
> Subject: Re: [Jscl-meditor-users] Equations vs Expressions.
> 
> Quoting Ryan Eberly <ry...@pr...>:
> 
> > Hi I am new to the mailing list.
> >
> >
> >
> > I've noticed that jscl-meditor handles expressions, but equations cause
> a
> > parsing exception.  Are there any plans to support equations?
> >
> >
> >
> > Obviously the equation,
> >
> >             X = 3
> >
> > Can be rewritten as the expression
> >
> >             X - 3
> >
> >
> >
> > However, I would like to be able to get the equation as mathML, then
> > simplify it.
> >
> >
> >
> >       Thanks,
> >
> >               Ryan.
> 
> Hi Ryan,
> 
> Yes I could possibly add an Equation token in the grammar and have the
> ToMathML
> command expect an EquationOrExpression. Is that what you need ?
> 
> Raphael
> 
> 
> -------------------------------------------------------
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/jscl-meditor-users

Quoting Ryan Eberly <ry...@pr...>:

> Hi I am new to the mailing list.
>=20
> =20
>=20
> I've noticed that jscl-meditor handles expressions, but equations cause=
 a
> parsing exception.  Are there any plans to support equations?
>=20
> =20
>=20
> Obviously the equation,=20
>=20
>             X =3D 3
>=20
> Can be rewritten as the expression
>=20
>             X - 3
>=20
> =20
>=20
> However, I would like to be able to get the equation as mathML, then
> simplify it.
>=20
> =20
>=20
>       Thanks,=20
>=20
>               Ryan.

Hi Ryan,

Yes I could possibly add an Equation token in the grammar and have the To=
MathML
command expect an EquationOrExpression. Is that what you need ?

Raphael

Hi I am new to the mailing list.

I've noticed that jscl-meditor handles expressions, but equations cause a
parsing exception.  Are there any plans to support equations?

Obviously the equation, 

            X = 3

Can be rewritten as the expression

            X - 3

However, I would like to be able to get the equation as mathML, then
simplify it.

      Thanks, 

              Ryan.

Hi Raphael.

Thanks for putting in the Geometric Algebra stuff!  I just started 
playing with it today.

Cheers

Mike Thomas

Oh...sorry...I'm trying to merely solve...like doing division on a
calculator
And hitting [return] to get the answer...I guess I'm confused on what
would be the
literal keystrokes in meditor to do this with polynomials on the Palm
version.
Thanks again.

-David=20

-----Original Message-----
From: jsc...@li...
[mailto:jsc...@li...] On Behalf Of
Raphael Jolly
Sent: Tuesday, February 10, 2004 1:21 PM
To: jsc...@li...
Subject: Re: [Jscl-meditor-users] Meditor Newbie

On Tue, 10 Feb 2004 18:31:49 Schneider, David A [ITS] wrote:
> Hi there,
>=20
> I've just installed the Palm and Desktop versions of meditor1.0rc4 And

> I'm trying to test a simple polynomial division problem in both...
> But I can't figure out how to get it to solve...
> When I type "solve((1+a+a^2+a^4)/(1+a+a^2+a^3+a^4+a^5+a^6), a, 0)=3D"
> And highlight it and choose "simplify" it merely returns what I typed.
> I'm sure I'm simply missing something simple here...
> I really want to use this to double check some extended Euclidean
algos.
> Please help.
> Thanks.
>=20
>=20
> -David Schneider

Hi David,

Not sure what you want to do. "solve" is meant to solve polynomial eqs.=20
For instance:

solve(1+a+a^2+a^4, a) (expand) -> root[0](1, 1, 1, 0, 1)

"simplify" will reduce the fraction. Here

(1+a+a^2+a^4)/(1+a+a^2+a^3+a^4+a^5+a^6) (simplify) returns the same
because it is already reduced.

For polynomial euclidian divisions, there are "div" and "mod" (expand):

div(1+a+a^2+a^4,1+a+a^2+a^3+a^4+a^5+a^6)=3D0
mod(1+a+a^2+a^4,1+a+a^2+a^3+a^4+a^5+a^6)=3D1+a+a^2+a^4
div(1+a+a^2+a^3+a^4+a^5+a^6,1+a+a^2+a^4)=3Da+a^2
mod(1+a+a^2+a^3+a^4+a^5+a^6,1+a+a^2+a^4)=3D1-a^2-a^3

Does it help ?

Raphael

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Open Tools Development and Integration See the breadth of Eclipse
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_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/jscl-meditor-users

On Tue, 10 Feb 2004 18:31:49 Schneider, David A [ITS] wrote:
> Hi there,
> 
> I've just installed the Palm and Desktop versions of meditor1.0rc4
> And I'm trying to test a simple polynomial division problem in both...
> But I can't figure out how to get it to solve...
> When I type "solve((1+a+a^2+a^4)/(1+a+a^2+a^3+a^4+a^5+a^6), a, 0)="
> And highlight it and choose "simplify" it merely returns what I typed.
> I'm sure I'm simply missing something simple here...
> I really want to use this to double check some extended Euclidean algos.
> Please help.
> Thanks.
> 
> 
> -David Schneider

Hi David,

Not sure what you want to do. "solve" is meant to solve polynomial eqs. 
For instance:

solve(1+a+a^2+a^4, a) (expand) -> root[0](1, 1, 1, 0, 1)

"simplify" will reduce the fraction. Here

(1+a+a^2+a^4)/(1+a+a^2+a^3+a^4+a^5+a^6) (simplify) returns the same 
because it is already reduced.

For polynomial euclidian divisions, there are "div" and "mod" (expand):

div(1+a+a^2+a^4,1+a+a^2+a^3+a^4+a^5+a^6)=0
mod(1+a+a^2+a^4,1+a+a^2+a^3+a^4+a^5+a^6)=1+a+a^2+a^4
div(1+a+a^2+a^3+a^4+a^5+a^6,1+a+a^2+a^4)=a+a^2
mod(1+a+a^2+a^3+a^4+a^5+a^6,1+a+a^2+a^4)=1-a^2-a^3

Does it help ?

Raphael

Hi there,

I've just installed the Palm and Desktop versions of meditor1.0rc4
And I'm trying to test a simple polynomial division problem in both...
But I can't figure out how to get it to solve...
When I type "solve((1+a+a^2+a^4)/(1+a+a^2+a^3+a^4+a^5+a^6), a, 0)=3D"
And highlight it and choose "simplify" it merely returns what I typed.
I'm sure I'm simply missing something simple here...
I really want to use this to double check some extended Euclidean algos.
Please help.
Thanks.

-David Schneider

Mike,

You're not doing anything wrong, simply the limit operation isn't impleme=
nted=20
(yet...). I need to find a good paper describing a suitable algorithm ; l=
ike=20
the Bronstein Tutorial, but for limits. I don't even know whether such pa=
per=20
exists.

Raphael

Selon Mike Thomas <mt...@gi...>:

> Hi there.
>=20
> I'm having trouble with the limit function:
>=20
>    lim(x*x,x,0)=3Dlim(x^2, x, 0)
>=20
> What am I doing wrong?
>=20
> Cheers
>=20
> Mike Thomas
>=20
>=20
>=20
> -------------------------------------------------------
> The SF.Net email is sponsored by EclipseCon 2004
> Premiere Conference on Open Tools Development and Integration
> See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
> http://www.eclipsecon.org/osdn
> _______________________________________________
> Jscl-meditor-users mailing list
> Jsc...@li...
> https://lists.sourceforge.net/lists/listinfo/jscl-meditor-users
>=20

Hi there.

I'm having trouble with the limit function:

   lim(x*x,x,0)=lim(x^2, x, 0)

What am I doing wrong?

Cheers

Mike Thomas

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