Dear Sir
I am running wxMaxima 0.8.5 (Maxima 5.21.1) but cannot get all the greek fonts (eg lambda and small case gamma). Please can you help me out?
Thanks - Ron Wiltshire
Sent from my BlackBerry? wireless device
-----Original Message-----
From: maxima-request at math.utexas.edu
Sender: maxima-bounces at math.utexas.edu
Date: Fri, 18 Feb 2011 13:47:19
To: <maxima at math.utexas.edu>
Reply-To: maxima at math.utexas.edu
Subject: Maxima Digest, Vol 55, Issue 36
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Today's Topics:
1. plot3d and space curves (Rob Burns)
2. Re: plot3d and space curves (Jaime Villate)
3. Re: Trying to build maxima from CVS (Paul Bowyer)
4. restarting maxima from scratch (dlakelan)
5. assumptions in solve() (Dmitry Shkirmanov)
6. Re: Trying to build maxima from CVS (Raymond Toy)
7. Re: restarting maxima from scratch (Raymond Toy)
8. Re: Maxima commit list is broken (Raymond Toy)
----------------------------------------------------------------------
Message: 1
Date: Fri, 18 Feb 2011 16:58:06 +0000 (GMT)
From: Rob Burns <rob_g_burns at yahoo.co.uk>
To: maxima at math.utexas.edu
Subject: plot3d and space curves
Message-ID: <724938.5437.qm at web26008.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
Until recently I have been using Maxima 5.18.1, In this I could use plot3d to
plot curves in 3D by having expr1, expr2, expr3 all as functions of x.
Now I have upgraded to Maxima 5.23.2, plot3d does not seem to have these
operands.
Could someone explain to me how to plot space curves in 3D?
I have looked at draw biut am no wiser,
Regards, Rob.
------------------------------
Message: 2
Date: Fri, 18 Feb 2011 17:37:53 +0000
From: Jaime Villate <villate at fe.up.pt>
To: Rob Burns <rob_g_burns at yahoo.co.uk>
Cc: maxima at math.utexas.edu
Subject: Re: [Maxima] plot3d and space curves
Message-ID: <1298050673.6279.1.camel at wigner>
Content-Type: text/plain; charset="UTF-8"
On Fri, 2011-02-18 at 16:58 +0000, Rob Burns wrote:
> Until recently I have been using Maxima 5.18.1, In this I could use plot3d to
> plot curves in 3D by having expr1, expr2, expr3 all as functions of x.
>
> Now I have upgraded to Maxima 5.23.2, plot3d does not seem to have these
> operands.
>
> Could someone explain to me how to plot space curves in 3D?
Hi,
perhaps you are referring to this?:
http://www.ma.utexas.edu/pipermail/maxima/2010/021424.html
If not, please give me an example of the plot3d command you are trying
to use.
Regards,
Jaime Villate
------------------------------
Message: 3
Date: Fri, 18 Feb 2011 10:35:33 -0800
From: Paul Bowyer <pbowyer at olynet.com>
To: maxima at math.utexas.edu
Subject: Re: [Maxima] Trying to build maxima from CVS
Message-ID: <4D5EBBF5.80809 at olynet.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello:
I'm trying to build maxima from CVS using:
"cvs -d :pserver:anonymous at maxima.cvs.sourceforge.net:/cvsroot/maxima co
maxima"
#which seems to download maxima source properly.
I then did from the maxima source directory:
"bootstrap"
#which completed successfully
"export GCL_ANSI=y CFLAGS="-O2 -g -march=i386 -mcpu=i686 -fno-fast-math"
CXXFLAGS="-O2 -g -march=i386 -mcpu=i686 -fno-fast-math" && ./configure
--prefix=$HOME/MaximaTest --enable-gcl --with-gcl=/usr/bin/gcl"
#which failed with "config.status: error: cannot find input file:
`Makefile.in'"
I did this earlier this morning (because I didn't get the error message
then) with a copy of maxima's source I downloaded yesterday (or the day
before) and I was able to successfully build maxima, using:
"make"
"make check"
"make install"
I ran the newly installed version of xmaxima from the install directory,
but the help file identified itself as "maxima-5.21post" from within
xmaxima so I deleted the maxima source directory and started over by
again downloading the source from CVS in an attempt to make certain I
was getting the proper source and now I'm getting the error message
shown above.
Should I be using a different CVS command to obtain the source, or is
there a problem with maxima's source that needs attention?
Thanks in advance,
Paul Bowyer
------------------------------
Message: 4
Date: Fri, 18 Feb 2011 11:22:01 -0800
From: dlakelan <dlakelan at street-artists.org>
To: Maxima Mailing List <maxima at math.utexas.edu>
Subject: restarting maxima from scratch
Message-ID: <4D5EC6D9.90806 at street-artists.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It would be useful to be able to COMPLETELY clear Maxima back to initial
conditions. kill(all); and reset(); help a lot if you're doing casual
calculations, but if you want things completely cleared out, as far as I
can tell the only way to do this reliably is to quit and re-start maxima.
It could be useful instead to have a function "restart();" which just
calls "exec" on the maxima executable. I see that in Linux at least the
maxima executable is actually a shell script that calls exec on the
appropriate lisp runtime so perhaps it is a bit tricky to do this. SBCL
certainly supports exec if I remember correctly, I'm not sure if GCL
does or any of the other Lisps Maxima supports. In any case, the
"restart" function could call exec when supported, and throw an error
with a message like "this lisp does not provide support for the restart
function, please quit maxima manually and start it again" otherwise.
What do you all think? Is this worthwhile, or just a potential
maintenance headache?
------------------------------
Message: 5
Date: Fri, 18 Feb 2011 22:23:54 +0300
From: Dmitry Shkirmanov <piminusmeson at bk.ru>
To: maxima at math.utexas.edu
Subject: assumptions in solve()
Message-ID: <E1PqVvm-00063y-00.piminusmeson-bk-ru at f259.mail.ru>
Content-Type: text/plain; charset="koi8-r"
Hello list, i am solving the simple system of the equations:
#
(%i2) solve([pasquare*pbsquare*costhetavkv=((-ma^2-mb^2+mc^2)/2 + Ea*Eb)^2,pasquare=Ea^2-ma^2,pbsquare=Eb^2-mb^2],[Eb,pbsquare,pasquare]);
#
In the output there is the factor sqrt(ma-Ea), but in my task Ea>ma, so this factor does not have any sense. It seems that when maxima encounters expression sqrt(a*b) it returns sqrt(a)*sqrt(b). But in case of a<0 and b<0 the answer is sqrt(-a)*sqrt(-b).
Is it possible to make maxima to hold sqrt(a*b) and not divide in into sqrt(a)*sqrt(b)?
P.S. sorry for my rough english
------------------------------
Message: 6
Date: Fri, 18 Feb 2011 14:42:20 -0500
From: Raymond Toy <toy.raymond at gmail.com>
To: maxima at math.utexas.edu
Subject: Re: [Maxima] Trying to build maxima from CVS
Message-ID: <4D5ECB9C.40705 at gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On 2/18/11 1:35 PM, Paul Bowyer wrote:
> Hello:
>
> I'm trying to build maxima from CVS using:
> "cvs -d :pserver:anonymous at maxima.cvs.sourceforge.net:/cvsroot/maxima
> co maxima"
> #which seems to download maxima source properly.
>
> I then did from the maxima source directory:
> "bootstrap"
> #which completed successfully
>
> "export GCL_ANSI=y CFLAGS="-O2 -g -march=i386 -mcpu=i686
> -fno-fast-math" CXXFLAGS="-O2 -g -march=i386 -mcpu=i686
> -fno-fast-math" && ./configure --prefix=$HOME/MaximaTest --enable-gcl
> --with-gcl=/usr/bin/gcl"
> #which failed with "config.status: error: cannot find input file:
> `Makefile.in'"
>
You mean maxima.system.in?
I inadvertently checked in something by accident. I thought I had
reverted this change yesterday, but I didn't. It should be fixed in CVS
now.
(This is where having the commit log emails would be really beneficial.)
Ray
------------------------------
Message: 7
Date: Fri, 18 Feb 2011 14:45:08 -0500
From: Raymond Toy <toy.raymond at gmail.com>
To: maxima at math.utexas.edu
Subject: Re: [Maxima] restarting maxima from scratch
Message-ID: <4D5ECC44.8090701 at gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On 2/18/11 2:22 PM, dlakelan wrote:
> It would be useful to be able to COMPLETELY clear Maxima back to
> initial conditions. kill(all); and reset(); help a lot if you're doing
> casual calculations, but if you want things completely cleared out, as
> far as I can tell the only way to do this reliably is to quit and
> re-start maxima.
>
> It could be useful instead to have a function "restart();" which just
> calls "exec" on the maxima executable. I see that in Linux at least
> the maxima executable is actually a shell script that calls exec on
> the appropriate lisp runtime so perhaps it is a bit tricky to do this.
> SBCL certainly supports exec if I remember correctly, I'm not sure if
> GCL does or any of the other Lisps Maxima supports. In any case, the
> "restart" function could call exec when supported, and throw an error
> with a message like "this lisp does not provide support for the
> restart function, please quit maxima manually and start it again"
> otherwise.
>
How is restart() different from quitting maxima and starting maxima
again? If there is none, the why spend any time adding this code and
testing it?
A line not added is a line debugged. :-)
Ray
------------------------------
Message: 8
Date: Fri, 18 Feb 2011 14:47:05 -0500
From: Raymond Toy <toy.raymond at gmail.com>
To: maxima at math.utexas.edu
Subject: Re: [Maxima] Maxima commit list is broken
Message-ID: <ijmibp$p99$1 at dough.gmane.org>
Content-Type: text/plain; charset=ISO-8859-1
On 2/17/11 5:58 PM, Raymond Toy wrote:
> On 2/17/11 5:09 PM, Robert Dodier wrote:
>> For the record, I saw the error message about /bin/mail too
>> and I don't know what that's about.
>> Not sure what to do at this point.
> Complain to Sourceforge I guess.
Apparently this has already been reported.
Ray
------------------------------
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