Re: [sage-support] Re: Decompressing sage version

2015-06-06 Thread calcpage
Did you do a chksum on your download? Maybe download another copy. Sounds like a corrupt file. — Sent from Mailbox On Sat, Jun 6, 2015 at 6:21 PM, avi kaur wrote: > Sir It displays that It is not a tar file. Moreover, The version I want to > install has ".lrz" extension. > On Sun, Jun 7, 201

Re: [sage-support] Re: Decompressing sage version

2015-06-06 Thread calcpage
Actually ctrl alt f7 converts the whole desktop to a terminal. Then you have to login. When done ctrl alt f7 toggles back to a GUI desktop. It takes a moment. — Sent from Mailbox On Sat, Jun 6, 2015 at 5:46 PM, Alexander Lindsay wrote: > Also ctrl-alt-t > Sent from my iPhone >> On Jun 6, 20

Re: [sage-support] Re: Decompressing sage version

2015-06-06 Thread calcpage
Actually you can open a shell on Ubuntu with ctrl alt f1 combo. — Sent from Mailbox On Sat, Jun 6, 2015 at 5:31 PM, Vincent Delecroix <20100.delecr...@gmail.com> wrote: > As I said already: > $ tar xf NAME_OF_THE_FILE > On 06/06/15 23:30, avi kaur wrote: >> Ok >> I got you >> What should I

[sage-support] Re: Approximate decimal answers

2015-03-26 Thread calcpage
Well the idea was to come up with an application to stress the cluster my students built. What would you suggest? — Sent from Mailbox On Thu, Mar 26, 2015 at 7:13 AM, Harald Schilly wrote: > On Tuesday, March 24, 2015 at 11:44:21 PM UTC+1, A. Jorge Garcia wrote: >> >> Monte Carlo simulation

[sage-support] Re: Approximate decimal answers

2015-03-25 Thread calcpage
Ah, yes, that's what I was looking for! Thank you, gentlemen! — Sent from Mailbox On Wed, Mar 25, 2015 at 1:29 PM, Ralf Stephan wrote: > On Tuesday, March 24, 2015 at 11:44:21 PM UTC+1, A. Jorge Garcia wrote: >> >> What I'm wondering is where does the n() method come from. Is it peculiar >>

[sage-support] Approximate decimal answers

2015-03-24 Thread calcpage
When using Sage. my students really like using the n() method as in show(sqrt(2).n(digits=50)) giving the result rounded off to 50 decimal digits after the decimal point. What I'm wondering is where does the n() method come from. Is it peculiar to Sage or Maxima or what? Is it pure python? The r

Re: [sage-support] 3d plotting does not work on sage cell server

2015-02-02 Thread calcpage
Do you have JRE installed in your browser? If not, you can try (A+B).show(viewer="tachyon") Otherwise, when you execute A+B the default is show(viewer='jmol"). HTH, AJG — Sent from Mailbox On Mon, Feb 2, 2015 at 6:07 AM, null wrote: > I do not get any output to any 3d plotting command. The

Re: [sage-support] Membership in sage-notebook still pending

2011-03-05 Thread Calcpage
Speaking of other lists, you may want to close or delete dsageng as dsage is no longer supported and it's not been used for a long tome except for some offensive spam... Regards, A. Jorge Garcia Applied Math & CS Baldwin SHS & Nassau CC http://shadowfaxrant.blogspot.com http://www.youtube.com

Re: [sage-support] SAGE cluster?

2011-03-04 Thread Calcpage
ething ourselves. On Mar 3, 2011 3:55 PM, "David Kirkby" wrote: > On 3 March 2011 21:56, Calcpage wrote: >> Well, I'd like to expose my Computing Independent Study (aka CIStheta) class >> to MPI. I was wondering if it is easier to set up under SAGE. >> I

Re: [sage-support] SAGE cluster?

2011-03-03 Thread Calcpage
Well, I'd like to expose my Computing Independent Study (aka CIStheta) class to MPI. I was wondering if it is easier to set up under SAGE. I have run live Linux CD solutions for clustering for years now such as ClusterKnoppix, BCCD and Quantian for openMosix and PVM. That was years ago. Mor

Re: [sage-support] Re: Mathematica

2010-09-10 Thread Calcpage
Yes, I "went" to the parallel processing talk as a webinar last year and got nothing out of it, basically a sales pitch as you say Regards, A. Jorge Garcia Applied Math & CS Baldwin SHS & Nassau CC http://shadowfaxrant.blogspot.com http://www.youtube.com/calcpage2009 Sent from my iPod On S

Re: [sage-support] Re: tab on an iPad

2010-08-24 Thread Calcpage
I tried that link on my iPod Touch and got an error; "no wedgl context found ." Regards, A. Jorge Garcia Applied Math & CS Baldwin SHS & Nassau CC http://shadowfaxrant.blogspot.com http://www.youtube.com/calcpage2009 Sent from my iPod On Aug 23, 2010, at 6:36 PM, Jason Grout wrote: On 8/

Re: [sage-support] Re: Trouble Installing Sage on Linux Ubuntu

2010-07-01 Thread Calcpage
In Ubuntu, the user passwd IS the sudo passwd! HTH, A. Jorge Garcia Applied Math & CS http://shadowfaxrant.blogspot.com Sent from my iPod On Jul 1, 2010, at 4:41 PM, Burcin Erocal wrote: On Thu, 1 Jul 2010 13:32:47 -0700 William Stein wrote: On Thu, Jul 1, 2010 at 12:26 PM, Dieter wrote:

Re: Sage on iPhone - Re: [sage-support] strange behavior in matrix substitution

2010-06-13 Thread calcpage
I check my student's worksheets (those they share) on my iPod Touch no problem from sagenb. The only problem is viewing a plot() in 3D as the jre is not supported on the iPod Touch's Safari. HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Co

Re: [sage-support] Re: Sage notebook on a mobile device?

2010-05-30 Thread Calcpage
May 30, 2010, at 7:13 PM, Alasdair wrote: Thanks for your answers - I can (just!) use the Sage notebook, but it is not easy on an iPod Touch, and requires a lot of zooming. -Alasdair On May 31, 5:37 am, Calcpage wrote: I have been using SAGE on my iPod Touch lately and find very useful. The

Re: [sage-support] Sage notebook on a mobile device?

2010-05-30 Thread Calcpage
I have been using SAGE on my iPod Touch lately and find very useful. The only problem I have had is viewing 3D plots as SAGE uses a java applet to render such plots. Safari on the iPod Touch does not support the jre. Is there anyway around this? TIA, A. Jorge Garcia Applied Math & CS htt

Re: [sage-support] Re: Simple multiprocessing example in Sage-Notebook

2010-03-07 Thread calcpage
pool sounds interesting! ipython is separate from parallel python? What about the @parallel decorator, is that parallel python? Its confusing in SAGE sometimes what needs importing and what doesn't. TIA, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physic

Re: [sage-support] Simple multiprocessing example in Sage-Notebook

2010-03-07 Thread calcpage
from multiprocessing import Pool ... pool = Pool(processes=2)# start 2 worker processes << Wow, cool, is this part of parallel python? Does this only work on a multi-core PC or can this be made to work over a cluster as well? TIA, A. Jorge Garcia http://calcpage.tripod.com T

Re: [sage-support] Re: animations of raytraces of 3d plots.

2010-03-03 Thread calcpage
BTW, tachyon is supposed to run over MPI. Can I use SAGE to run tachyon over a cluster? TIA, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send em

Re: [sage-support] Published worksheets

2010-02-10 Thread calcpage
3. I may, depending on how organized and motivated I am, try creating new worksheets and converting some of my old notes for calculus to worksheets. Currently, I'm using Stewart's "Calculus." I'd be happy to make these available to anyone, but I'm wondering if their is an appropriate namin

Re: [sage-support] Re: [sage-edu] Installing SAGE 4.3.1 on Fedora 12 with x86_64

2010-02-08 Thread calcpage
OK, I did yum search gfortran* which returned gcc-gfortran so I did yum install gcc-fortran which installed a number of things including libgfortran However, when I use a shell to enter the sage directory (that I renamed sage431) created from extracting the lzma file to my Desktop directory i

Re: [sage-support] Re: [sage-edu] Installing SAGE 4.3.1 on Fedora 12 with x86_64

2010-02-05 Thread calcpage
OK, I think Fedora 12 has the latest gcc and g++ but I don't know about gfortran. Thanx, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send email to

Re: [sage-support] openMPI and MPI4PY?

2010-02-03 Thread calcpage
OK, if I want to install SAGE on my linux box with openMPI and mpi4Py, how do I configure these packages to work together over a cluster? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Commu

Re: [sage-support] Re: sage blog

2010-02-02 Thread calcpage
All I know is this is my feed: http://calcpage.tripod.com/shadowfax/rss.xml does that help? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, sen

[sage-support] openMPI and MPI4PY?

2010-02-02 Thread calcpage
Are openMPI and MPI4PY included in the SAGE distribution? I see MPI4PY mentioned here: http://www.sagemath.org/doc/numerical_sage/mpi4py.html Also, this blog http://www.sagemath.org/doc/numerical_sage/mpi4py.html says that openMPI is included when you install SAGE. I don't see how that's possib

Re: [sage-support] Re: sage blog

2010-02-01 Thread calcpage
OOPs, I'm sorry, I am a total noob wrt rss. How do I enable this? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send email to sage-support@googl

Re: [sage-support] Re: sage blog

2010-02-01 Thread calcpage
OK, thanx for trying. Regards, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this grou

Re: [sage-support] Sage in calculators

2010-02-01 Thread calcpage
I was uin my kid's iPod Touch the other day to edit my sage notebook files at www.sagenb.org using safari no problem! HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To

[sage-support] sage blog

2010-01-31 Thread calcpage
I just changed my blog around a bit. SAGE specific posts have "SAGE" in the title and have been moved to the "SAGE" topic/thread. Is this sufficient so as to be included in the SAGE blog? TIA, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Compu

Re: [sage-support] Re: @interact with non-Sage objects

2010-01-26 Thread calcpage
Don't forget arpanet, bitnet, milnet, timenet, usenet HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send email to sage-support@googlegroups

Re: [sage-support] Re: @interact with non-Sage objects

2010-01-26 Thread calcpage
I first taught programming in 1975 using BASIC on a DEC PDP-1170 minicomputer. We connected to it via a 300 baud modem. This was before video monitors so we used dumb terminals that printed tons of paper whenever there was any output! HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher

Re: [sage-support] Re: @interact with non-Sage objects

2010-01-25 Thread calcpage
Ah, those were the days... of archie, gopher, bitnet, uuencode, etc. HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -- To post to this group, send email to sage-support@

Re: [sage-support] Re: @interact with non-Sage objects

2010-01-25 Thread calcpage
I'm using a blog app attached to my website at tripod.com These blogs each have different titles but are organized under different topics or threads. Do I mention SAGE in the titles or do I make a SAGE topic/threas? Regards, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Appl

Re: [sage-support] two suggestions from JMM presentation

2010-01-14 Thread calcpage
I was wondering if you will post the presentation to your website? I saw that you had posted other talks on you site - very nice! HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community Co

Re: [sage-support] Re: Running Sage on a 64-bit Scientific Linux machine

2009-12-10 Thread calcpage
> (this is what I do, I develop on a old Pentium 4 32bits single core > with just 1GB RAM... but use my cluster for production runs) What kind of cluster are you using? TIA, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Sen

Re: [sage-support] Re: Running Sage on a 64-bit Scientific Linux machine

2009-12-10 Thread calcpage
>> Also, you can use mpi4py to parallelize your own work building on top of Sage. << Will this work on a cluster or just a multicore pc or both? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau

[sage-support] blogging about SAGE!

2009-11-21 Thread calcpage
BTW, if you're interested, you may want to see my blog, linked at: http://calcpage.tripod.com where I mention SAGE quite a bit! HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community Colle

[sage-support] SAGE on a cluster?

2009-11-20 Thread calcpage
I'm wondering if anyone is using SAGE on a cluster. I recall something about dSAGE a while back, is that still being supported? I see on the tutorial there's something about using mpiPy with SAGE. If I install SAGE on each of my compute nodes, is mpiPy already included? Do I have to setup mp

Re: [sage-support] Re: Server Wars!

2009-11-18 Thread calcpage
>> As someone else pointed out, you can have multiple servers running on the same machine. Each service has a standard port (port 21 for ftp, port 22 for ssh, port 23 for telnet, port 80 for HTTP, port 443 for HTTPS. << Yes, of course, I just mean I'm not going to be able to drop ftp. Thanx, A

Re: [sage-support] Re: Server Wars!

2009-11-17 Thread CalcPage
Well, I use the ftp site to share files with my students (pdfs, mp4s, assorted apps, etc). So, I think I need a dedicated ftp server after all HTH, A. Jorge Garcia _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) Teacher & Professor Applied Mathematics, Physics & Computer S

Re: [sage-support] Re: Server Wars!

2009-11-17 Thread calcpage
>> Yes, but I personally would drop the ftp and only use ssh/sftp and Sage. In any case, those services operate through different ports so you can use the same physical server for all 3. << OK, but how do I emulate anonymous ftp with sftp? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher

[sage-support] Re: Code Highlighting

2009-11-16 Thread calcpage
Can't you write python code in a text editor that supports highlighting then copy and paste to a cell or import the file somehow? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community Co

[sage-support] Re: Server Wars!

2009-11-14 Thread calcpage
Well, currently, the ftp server has only root on it so I can upload materials for my lovelies. Then they download via anonymous ftp. I used slackware and proftpd to set up that server eons ago. HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics &

[sage-support] Re: Server Wars!

2009-11-14 Thread calcpage
BTW, I currently have 3 Linux servers at school. One is an ftp server to share files with my students. Another is an sftp server where my students can login to save their work. And another is down right now and was an apache server. I should be getting that last one repaired soon and am thi

[sage-support] Server Wars!

2009-11-14 Thread calcpage
Ever have one of those days where all your servers went down??? Take a look at the latest updates on my blog for more info! Just surf on over to http://calcpage.tripod.com and click on the link near the top of my home page. Enjoy, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor

[sage-support] Re: Intro to Sage presentation at conference

2009-11-07 Thread calcpage
OK, I gave a talk at a local conference which had a lot to do with SAGE the other day. I think it went well, even if the topic was a little over the heads of the participants Have a look at my comments about this on my blog. Just surf on over to my website http://calcpage.tripod.com and

[sage-support] Intro to Sage presentation at conference

2009-11-02 Thread CalcPage
Take a look at my blog for info on a presentation I'm giving involving Sage! Goto _http://calcpage.tripod.com_ (http://calcpage.tripod.com) and click on link for my blog near the top of my website. TIA, A. Jorge Garcia _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) Teacher

[sage-support] Re: publishing a worksheet

2009-10-31 Thread calcpage
OK, what does sharing mean then? And how do I publish a worksheet instead? TIa A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College --~--~-~--~~~---~--~

[sage-support] publishing a worksheet

2009-10-31 Thread CalcPage
When you are happy with a worksheet, how do you publish it? Do you simply click in the notebook() where it says share? I did so, but I do not see my worksheet in the published page. Does it take a while before it appears there or am I doing this wrong? TIA, A. Jorge Garcia _http://calcp

[sage-support] Re: f.subs(2)?

2009-10-31 Thread calcpage
OK, I see, if I define f(x) then I can use f(2) to evaluate. Otherwise, if I define only f, then f(x=2) or f.subs(2) is required. Thanx, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community

[sage-support] f.subs(2)?

2009-10-31 Thread CalcPage
I'm preparing a talk I'm giving at a local conference next week where I will be demonstrating Sage. I'm wondering about a deprecation warning I've been getting a lot lately. If I define function, say f(x), and I want to evaluate f(x) at x=2, if I enter f(2) I get the warning. I've

[sage-support] Re: power representation of finite field elements

2009-10-31 Thread CalcPage
I'm preparing a talk I'm giving at a local conference next week where I will be demonstrating Sage. I'm wondering about a deprecation warning I've been getting a lot lately. If I define function, say f(x), and I want to evaluate f(x) at x=2, if I enter f(2) I get the warning. I've be

[sage-support] Re: Sage 4.2 Lightweight LiveCD is ready to download.

2009-10-30 Thread calcpage
I think it was Sage 2.5? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College -Original Message- From: Lucio Lastra To: sage-support@googlegroups.com Sent: Fri, Oct 30,

[sage-support] Re: Sage 4.2 Lightweight LiveCD is ready to download.

2009-10-30 Thread CalcPage
OK, so the older CDs were Alfredo's? HTH, A. Jorge Garcia _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College In a message dated 10/30/2009 3:40:56 A.M. Eastern

[sage-support] Re: Sage 4.2 Lightweight LiveCD is ready to download.

2009-10-30 Thread CalcPage
Sorry, I'm afraid that I'm presenting to High School teachers that have only recently started using technology in the classroom. They have only used graphing calculators for a few years now and only just started using smartboards. I will show them you link and everything Sage that I can fit

[sage-support] Re: Sage 4.2 Lightweight LiveCD is ready to download.

2009-10-29 Thread CalcPage
BTW, The Sage 4.1.1 CD is very nice! HTH, A. Jorge Garcia _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College In a message dated 10/29/2009 5:32:59 P.M. Eastern

[sage-support] Re: ssh cached output?

2009-10-27 Thread calcpage
OK, so people are using Sage on a cluster? How does this work? TIA, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College --~--~-~--~~~---~--~~ To po

[sage-support] Re: desolve - my missunderstanding or a bug in Sage?

2009-10-05 Thread calcpage
Wow, this sounds like a big bug. I will be using Sage quite a bit in a Calculus I and II lab in the Spring. Is this going to be huge problem? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau

[sage-support] Re: twisted server

2009-09-29 Thread calcpage
Isn't dSage based on twisted? HTH, A. Jorge Garcia http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College --~--~-~--~~~---~--~~ To post to this group, send email to sag

[sage-support] Re: Completing the square

2009-09-02 Thread CalcPage
That's a good question! I've written functions in MATLAB (well Octave actually) no problem. But I get confused where Python leaves off and Sage kicks in when witting functions here. Could someone please give me a barebones example, soup to nuts, of a Python vs. Sage vs. Other (Maxima and

[sage-support] Re: online notebook

2009-08-09 Thread CalcPage
I never said sagenb was slow. I thought it was running on some killer hardware. I seem to recall trying out sagenb with my Linux installation at school and finding it very responsive! Thanx, A. Jorge Garcia email _mailto:calcp...@aol.com_ (mailto:calcp...@aol.com) website _http://calcpag

[sage-support] Re: online notebook

2009-08-09 Thread CalcPage
What I meant to say is that I install the KNOPPIX DVD to a linux partition. The KNOPPIX CDs and DVDs can be used to install Debian Linuxboxes. Regards, A. Jorge Garcia email _mailto:calcp...@aol.com_ (mailto:calcp...@aol.com) website _http://calcpage.tripod.com_ (http://calcpage.tripod.com

[sage-support] Re: online notebook

2009-08-09 Thread CalcPage
I didn't want to overload sagenb, so I was going to have my students (in a new scientific computing lab) download and install Sage next year. But if you say its there forever and for student use, all I need to install is Mozilla, right? We use a dualboot install based on the KNOPPIX DVD and

[sage-support] Re: Sage for Scientific Grid

2009-05-12 Thread CalcPage
I just wish there were more examples, documentation, sample code to run with dSage both on a multicore PC and a cluster of such PCs HTH, A. Jorge Garcia email _mailto:calcp...@aol.com_ (mailto:calcp...@aol.com) website _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) weblog

[sage-support] Re: Sage on Grid. EGEE. gLite.org

2009-04-20 Thread CalcPage
In a message dated 4/20/2009 7:22:23 A.M. Eastern Daylight Time, salsa-...@tut.by writes: Has it been ever discussed to implement Grid functionality into Sage ? (except dsage which is quite different from Grid in EGEE sense) Well sure, there is dSage! The problem with it is there are

[sage-support] Re: sage tutorial on amazon

2009-04-02 Thread CalcPage
Wow, the latest tutorial (3.4) at least has more info on how to use dSage! Thanx, A. Jorge Garcia calcp...@aol.com http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College In a message dated 4/2/200

[sage-support] Re: Complex number and "TypeError: 'float' object is not c...

2009-03-01 Thread CalcPage
I didn't get c.imag() to work for me either, I tried something like this: a=(sqrt(-3)+2)^2 print a print a.expand() print a.expand().imag() and got 2 (sqrt(3) I + 2) 4 sqrt(3) I + 1 4 sqrt(3) HTH, A. Jorge Garcia calcp...@aol.com h

[sage-support] Re: Using Mathematica Remotely (with password)

2009-02-21 Thread calcpage
Take a look at my related post on the KNOPPIX Linux forum: http://www.knoppix.net/forum/viewtopic.php?t=28933&highlight= HTH, A. Jorge Garcia Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College calcp...@aol.com http://calcpa

[sage-support] Re: Solving a 2nd order linear ODE with initial conditi...

2009-01-21 Thread CalcPage
In a message dated 1/21/2009 6:44:38 P.M. Eastern Standard Time, jason-s...@creativetrax.com writes: diff(y,t,t) is just a shortcut for diff(diff(y,t),t). If you do diff?, you can see some of the different syntax possibilities. I get that, my point is that it would be more natural to

[sage-support] Re: Solving a 2nd order linear ODE with initial conditions

2009-01-21 Thread CalcPage
In a message dated 1/20/2009 9:37:38 P.M. Eastern Standard Time, wdjoy...@gmail.com writes: (The notation diff(y,t,t) comes from the notation for partial derivatives, I think.) That's odd since the given DiffEqu to solve was and ODE, not a PDE, right? TIA, A. Jorge Garcia calcp...@a

[sage-support] Re: Solving a 2nd order linear ODE with initial conditions

2009-01-20 Thread CalcPage
In a message dated 1/20/2009 9:05:58 P.M. Eastern Standard Time, wdjoy...@gmail.com writes: sage: t = var('t') sage: x = function('x',t) sage: DE = lambda y: diff(y,t,t) + y sage: f = eval(desolve_laplace(DE(x(t)), ["t","x"], [0,1,0])) sage: f(t) cos(t) OK, I saw this in the DiffEqu te

[sage-support] Re: to 64bit or not to 64bit, that is the question!

2009-01-17 Thread calcpage
That's what I thought. All I'd get for my troubles upgrading the OS is a bigger max_int and a larger address space, right? These PCs only have 1GB RAM, so I'm not going over 4GB THanx, A. Jorge Garcia calcp...@aol.com http://calcpage.tripod.com --~--~-~--~~~---

[sage-support] Re: question about visualization/animation of surfaces

2009-01-15 Thread CalcPage
OK, so I'll just run it on a local notebook(). Either I install Sage on my server or I can try your program on the Sage 3.1.1 live CD? TIA, A. Jorge Garcia Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College _calcp...@a

[sage-support] Re: question about visualization/animation of surfaces

2009-01-15 Thread CalcPage
Yup, its the comment lines, let me play with that. Regards, A. Jorge Garcia Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College _calcp...@aol.com_ (mailto:calcp...@aol.com) _http://calcpage.tripod.com_ (http://calcpage.tri

[sage-support] Re: question about visualization/animation of surfaces

2009-01-15 Thread CalcPage
That's what I thought but I ran it on _www.sagenb.org_ (http://www.sagenb.org) and got errors. Should I run it in a Sage shell instead of a Sage notebook()? TIA, A. Jorge Garcia Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Commu

[sage-support] Re: mathematica notebooks?

2009-01-05 Thread CalcPage
without Octave for now! TIA, AJG A. Jorge Garcia Teacher & Professor Applied Math, Physics & CS Baldwin HS & Nassau CC _calcp...@aol.com_ (mailto:calcp...@aol.com) _cistheta2...@aol.com_ (mailto:calcp...@aol.com) CALCPAGE: The CALCulus and Computer Science Archive

[sage-support] mathematica notebooks?

2009-01-04 Thread calcpage
Hi, I see that sage can call mathematica functions - I suppose that only works if I have mathematica installed. What I'm wondering is if I can import a mathmatica notebook into sage? We used to have mathematica at my school and I remember using some very nice mathematica notebooks by Jerry Uh

[sage-support] Re: How to make Sage to solve the equation?

2009-01-03 Thread CalcPage
(mailto:calcp...@aol.com) _cistheta2...@aol.com_ (mailto:calcp...@aol.com) CALCPAGE: The CALCulus and Computer Science Archive PAGE _http://calcpage.tripod.com_ (http://calcpage.tripod.com/) SFFBCLUB: Science Fact & Fiction Book CLUB _Search EBay for "ti active"_ (http://shop.eba

[sage-support] Re: How to make Sage to solve the equation?

2009-01-03 Thread calcpage
That's another issue: how do I know which package SAGE is using for a particular task. You mention there may be a problem with maxima or numpy, how are we to know? TIA, AJG A. Jorge Garcia Teacher and Professor mailto:calcp...@aol.com ftp://ftp.baldwinschools.net http://calcpage.tripod.com/bs

[sage-support] Re: How to make Sage to solve the equation?

2009-01-03 Thread calcpage
Exactly, the function log base 2 of x is not defined at 0. So, why won't sage return some sort of domain error? I noticed something similar when I plotted (x^2-1)/(x-1) and got the graph of x+1. I was hoping for a removeable discontinuity to show in the graph! IE a hole in y=x+1 at x=1. TIA, AJ

[sage-support] Re: How to make Sage to solve the equation?

2009-01-03 Thread calcpage
>> sage: plot(x^2*log(x,2)-1, 0,2) [nice plot so you can understand what is going on] sage: find_root(x^2*log(x,2)-1,1, 2) 1.4142135623730951 << Hi, I'm trying out SAGE for the first time, so I entered what you suggested (see above). Now, from the plot, it there seems to be no other roots betw