hen I'm trying to find the natural
frequency since I need good resolution around the damped natural
frequency peaks.
Cheers,
Tim.
--
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://about.me/tjlahey
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ing with
Octave and as such, they've been getting better toolbox support, but I
know I'd have to improve at least their System ID support before I
could think about switching.
Cheers,
Tim.
--
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://about.me/tjlahey
On 2011-04-28, at 3:42 PM, "Justin C. Walker" wrote:
>
> On Apr 28, 2011, at 02:17 , Dr. David Kirkby wrote:
>
>> Here's a few comments about the home page of the notebook.
>>
>> http://localhost:8000
>>
>> I'd appreciate what others think.
>>
>> 1) I was always taught that if you list items, you
> On Fri, Apr 8, 2011 at 12:51 PM, Tim Lahey wrote:
>> On Fri, Apr 8, 2011 at 3:37 PM, William Stein wrote:
>>
>> OS X comes with XCode, it's just not installed. It's just XCode 4 that
>> costs $4.99. However, what happens if people install a binary gcc?
developing a BSD compiler (clang) and since then, people have done
work to use gcc as the front end and llvm as the back end. The
Dragonegg project is the most recent work on this. Apple wanted a BSD
compiler since they couldn't integrate the compiler into XCode on the
level they wanted
erivatives
aren't presented in a useful form for me. What I've done is located at,
http://github.com/tjl/sage_int_testing
Once my thesis is done, I'll probably look at adapting it to Sympy/FEMhub.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of
icenses were $1250
(I think). So, Magma's close.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
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e output in a form I can use.
I seem to recall someone was working on a patch that
allowed one to display (and presumably work with) partial
derivatives in the traditional form. Does anybody know
what happened to that?
Thanks,
Tim Lahey.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
Un
ing one of the routines that guarantees real eigenvalues.
The code is on one of my backup CDs so it would be some work to dig it out.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--
To post to this group,
. Just make
it clear in the docstring/documentation that the results returned
aren't normalized.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--
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eople that are valid contributors to Sage are
mathematicians. So, doing the release management, fixing bugs, documentation,
or
maintaining the web site aren't important?
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahe
for larger projects. BitBucket is solely
Mercurial, but only offers 150MB. However, it supports a different workflow for
sharing code and bringing in updates. Lastly, GitHub offers 300MB and supports
a similar workflow to BitBucket (but better implemented in my opinion). The
only problem is that
w
I quite like. You can fork someone's repository and do the work on your
copy of the repo and then request that the original maintainer pull your
changes back into the main. It means that you don't have to worry about
commit access to the main repository. Plus, it gives a nice way for the
m
tralia. Perhaps I'm seeing
> a
> different mirror. Perhaps something decides what mirror one sees, based on IP
> address.
>
Possibly. I'm in Canada and the home page is fine for me.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Water
On 12-19-2009, at 3:50 PM, William Stein wrote:
> On Sat, Dec 19, 2009 at 12:44 PM, Tim Lahey wrote:
>> It appears that Scilab 5 (http://www.scilab.org/)
>> is now GPL v2 compatible according to their web site
>> and the FAQ for the license that they're using,
>
ll have time to work
on it.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
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sage
e it installed through MacPorts, but Sage requires MacPorts
to be disabled before building.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
smime.p7s
Description: S/MIME cryptographic signature
the delta
function.
There's also integration rules, but they're unimportant for this
discussion.
So, 0^0 amounts to defining that the Heaviside function = 1 at x = a.
I prefer
to think of it as undefined and define it strictly in terms of left
and right
limits.
Cheers,
Tim.
---
Tim
x27;re included in Perian (which is highly recommended for OS
X users).
VLC will definitely work, though.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
T
On 2009-09-25, at 11:36 PM, Pat LeSmithe wrote:
>
> Peter wrote:
>> Is anyone working on rendering surfaces with shading over the
>> wireframe?
>
> Is it practical to adapt the Pre3d library
>
> http://deanm.github.com/pre3d/
>
It doesn't seem to work on the iPod, though which is a nice advanta
'm really excited about the
> possibilities!
On my 2.1GHz MacBook it is perfectly smooth in Safari. Maybe it's a
difference
of Javascript engines?
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~-
then compare the
two lists.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
smime.p7s
Description: S/MIME cryptographic signature
the explicit base so the base is clear when viewing
the log.
Cheers,
Tim.
---
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PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send an email to sage-devel@goo
to have a separate namespace for it?
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscr
10.5, I'm
not sure about 10.4.
Oh, the OS X Readme should really be updated (and the 64-bit build
instructions added).
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~-
nt_dates.htm .)
SymPy has some support for Geometric Algebra. As for Finite Elements,
you can also look at FEMhub (femhub.org) which is an open-source FEM
distribution based upon .spkg files.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://w
sion to
still work when updated. Deleting old versions is fine, deleting the
most recent version would require fixing the Current symlinks.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.l
On Aug 25, 2009, at 2:00 PM, William Stein wrote:
>
> On Tue, Aug 25, 2009 at 10:54 AM, Tim Lahey
> wrote:
>>
>>
>> One of the nice things about Framework builds is that they're nice
>> and
>> contained. Everything is in one directory, much l
I work on OS X with
python. So, if we want to support those python add-ons, we need a
framework build.
The only problem I can possibly see is a conflict with the system python
Framework if it is a "python" framework versus a Sage framework.
Cheers,
Tim.
---
Tim Lahey
PhD Candidat
On Aug 23, 2009, at 5:54 PM, William Stein wrote:
>
> Unfortunately it doesn't mean that. I think it just means that "ln"
> is a shortcut for "log", but otherwise works just like "log".
Is it possible in this change to have function for ln that will
print to LaTeX and just call log behind t
#x27;t
invent it. I've rarely needed ln in Matlab, but I've used it many
times in Maple.
I'm glad that ln will work in Sage. What does the ln = log mean for the
LaTeX code? I hope that it will output ln(x) instead of log(x).
Thanks,
Tim.
---
Tim Lahey
PhD Candidate, Systems D
of a choice. All use of log I learned
had a subscript to indicate the base.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send an email to s
l get the same result as the others. So, you can have either
result. In
one, you've defined an expression where u is the reference to it, and
the other
is an equation. In Maple, if you update a variable in an expression,
it will be
changed in all expressions that use that variable (once they
If it isn't possible to integrate with respect to
that variable, it should raise an error, not try to interpret what the
user means.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~
On Aug 11, 2009, at 6:03 AM, Dr. David Kirkby wrote:
>
> Tim Lahey wrote:
>>
>> On Aug 11, 2009, at 4:55 AM, Dr. David Kirkby wrote:
>>
>>> 1) Some things 'fail' a test as they are now evaluated in Maxima.
>>> e.g.
>>>
&
be updated without updating
> Maxima, due to a bug in Maxima.
>
> Dave
>
I think updating Maxima is a good thing. I'd like to see closer tracking
since there are a number of useful features that are being upgraded
(e.g.,
integration). Solaris SPARC support provides another good impet
t your implementation can coexist with the current
> one in Sage. Why don't you submit your changes so people can try out
> both approaches?
>
> Maple also has an inert "Diff" operator, your implementation can be
> the
> Sage equivalent.
>
I don't like thi
>
> So what is it, (1) or (2) ?
>
How about,
WARNING: This is a prerelease version, and it may be unstable.
That way, it stands out, but is still easy to read.
Cheers,
Tim.
---
Tim Lahey
PhD C
ecent
> call last)
>
> /home/wdj/.sage/temp/hera/27292/_home_wdj__sage_init_sage_0.py in
> ()
>
> AttributeError: sin
Won't Sage preparse it so the 2, 50, 70, and 4 become Sage integers?
If I recall correctly, putting r after the appropriate constants
should fix it.
Cheer
rmation
>> is stored? In case its just representation, it should be trivial to
>> fix. In case the information is not stored... Well, I don't think
>> this is possible, it does not make sense that the definition of
>> a derivative doesn't include the variable of derivati
y integration test suite soon.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@googlegroups.com
To unsubscribe from th
l
spend a minute or two on each line that uses D notation.
The other problem with the D notation is that it doesn't match
textbooks for teaching
purposes.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~
way to convert to standard notation. Sage
doesn't. In
addition, this notation doesn't work properly with the rest of Sage
(which
includes Maxima).
+1 for changing things.
Sage is currently unusable for me with this notation.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Des
sub-classing it
> from SFunction like what is being done for "integration"
> and others?
>
> Cheers,
> Golam
>
Also, Maple has a useful feature of letting you present partial
derivatives in
the form f,x,x,x for a triple partial der
use
\left and \right? Certainly for (x) they aren't really needed.
>
>
> If you have an issue with the above printing, please speak now! If
> you
> like this, it'd be great if you'd chime in as well.
>
> Burcin indicates that this is a stepping stone, not nece
and it turns out that many of
> the standard Sage spkg's are full of these ._'s. Any thoughts?
>
> -- William
>
> --
> William Stein
> Associate Professor of Mathematics
> University of Washington
> http://wstein.org
>
> >
---
Tim
on down to LLVM to improve the Python speed.
Cheers,
Tim.
---
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PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@googlegroups.com
To u
.py
[4.9 s]
However, both passed on the second time when run in isolation.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send em
for some time. I'm currently running
the test
suite before I start using it as my regular Sage version.
Thanks!
Is there anything specific we need to do for python extensions to get
them
to build in 64-bit if we want to include them in our Sage scripts?
Cheers,
Tim.
---
Tim Lah
o the same thing. We could also have
> simplify(algorithm="sympy"), and even someday
> simplify(algorithm="mathematica").
I like the idea of identifying the algorithm. It fits with the approach
for integration.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
used for my sage-3.4 build or for 4.0.2 if I
> figure out whats wrong with my approach building sage on bsd.math!
>
> I'll rebuild VTK on my mac tonight and check how that works.
>
> cheers,
> prabhu
>
Cheers,
Tim.
---
Tim Lahey
PhD Candid
lly careful.
At least with Sage, I can attempt to fix something myself and I can
see a list of known bugs.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To pos
t and the
Sage developers can use Mercurial to access it.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@googlegrou
for the same bitrate,
I recommend putting H.264 first in the list since any browser that
supports both formats (e.g., Chrome) will pick the first in the list.
The problem with the video tag is that IE doesn't support it, but I
think Flash can be used as a backup. I don't know what we should
r the same reason.
I don't mind the use of the video tag, but ffmpeg can generate H.264,
but apparently the Ogg support is problematic. Hence the ffmpeg2theora.
Cheers,
Tim.
---
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PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~
box, I'm surprised that .so files are built. The dynamic
libraries on OS X are .dylib.
Cheers,
Tim.
---
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PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, s
On Jun 30, 2009, at 12:32 PM, Ondrej Certik wrote:
>
> Is Sage using nonframework Python build? I don't know.
Yes, it's using a regular build. I think some people are
looking at a framework build .spkg because it's necessary
for any GUI work on OS X.
Cheers,
Tim.
---
Ti
e rendering or hardware one.
In the past, it was purely software, I don't know if that is true
anymore.
I hope this helps somewhat. To get the sample code, you may need a
free ADC developer account.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
ht
described on that page. There is
code there that
should be able to be converted to javascript.
I haven't tested the patch since I haven't upgraded my version of Sage yet.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
I ran across this package,
http://code.google.com/p/ruffus/
That provides for support for computational
pipelines in Python. It has some nice features
for support of a task pipeline and visualization
of the pipeline using Graphviz.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design
3, by the same author, which is
> not yet released, but is out in 3 months
>
> http://www.amazon.co.uk/Dive-into-Python-3-Pilgrim/dp/1430224150/ref=sr_1_2?ie=UTF8&s=books&qid=1246227275&sr=1-2
>
> perhaps I'll wait for the update.
>
Dive into python is available on-l
right impression.
However, I'd like plotting Dirac deltas to be optional. So, if you're
plotting
something with Dirac deltas and other functions, you don't need to
sift through
and remove the deltas before plotting.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems
, but next to any normal function, the impulses
would skew the scale and make all the other functions disappear.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post t
given its definition.
When I
work with Dirac deltas and their derivatives, I just ignore them for
plotting
purposes. I only plot their integrals and higher.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~
olution of
beam loading
problems. A Dirac delta represents an applied point load, a unit step
= distributed load,
and the derivative of a Dirac delta is a point moment.
I like the idea, but defining a value at x=0 is problematic. Different
conventions use
different values so making it
tensions
and in
particular, Firefox. I like the javascript-python solution since it
doesn't
require any browser additions.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linke
uch, it loads, but it doesn't seem to pass dragging
to the javascript so I can't rotate. However, it at least loads.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~
On Jun 17, 2009, at 12:32 AM, Ondrej Certik wrote:
>
> On Tue, Jun 16, 2009 at 7:32 PM, Tim Lahey wrote:
>>
>> Hi,
>>
>> I ran across this example of doing 3D using processing.js:
>>
>> http://mdp.cti.depaul.edu/3d
>>
>> although it also
Hi,
I ran across this example of doing 3D using processing.js:
http://mdp.cti.depaul.edu/3d
although it also uses web2py. I thought it was interesting
given the various problems with jmol at times.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
On Jun 15, 2009, at 1:14 PM, Bill Hart wrote:
>
> Can I ask what applications this "Hadamard product" has?
>
> Bill.
I've never heard it called that, but element-wise multiplication
is useful for tensors.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Desig
4 (D )(f)(x + 2 y)
>>
>>> convert(%, diff);
>>/ 2 \|
>>| d||
>> 4 |---- f(t1)||
>>| 2 ||
>>
x27;s common to use
> sin^2(x) to denote (sin(x))^2.
>
> I thought we should vote before I make this change the new standard,
> as a part of #6286.
>
>
> My vote is for arcsin.
>
+1
It's an easy find/replace if someone wants to use \sin^{-1} instead. I
pre
, and a lot of useful
>> things to know for python programmers.
>
> I think Tim meant to include this link: http://www.dabeaz.com/python/GIL.pdf
>
> --Mike
>
The video for this lecture is at:
http://blip.tv/file/2232410
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Desi
t;
> Nick
The problem I have with the "new" way is that it isn't standard so
it doesn't make sense for typesetting. You'd have to explain it in
every paper that used it.
Also, in Maple, it's only an option, not a default. If you use diff,
you get the standard not
On Jun 9, 2009, at 8:01 PM, Golam Mortuza Hossain wrote:
>
> (4) Should we switch to old maxima format for "diff"?
>
Yes. At least make it the default and the other an option.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http
e, it's mostly optional. Some functions require it, but
there is a function to convert to and from that notation when necessary.
It's bad enough that Sage uses row vectors when most linear algebra
texts use columns (at least in North America). I'd prefer that Sage
stick to tr
Sage.
>
> I can see how this can be more powerful, but I have to admit I'm not
> a fan of this compared to the standard df/dx notation.
>
> - Robert
I hate this notation in Maple, but it's pretty much optional. Plus,
while
I understand using 0-based indexing, the numbers
Hi,
I ran across this web site listing various jQuery plug-ins:
http://jquerylist.com/
I thought it might come in handy for notebook development.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
he result of "make test":
--
All tests passed!
Total time for all tests: 5838.0 seconds
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~
with Maxima
which is probably why it hasn't been magically fixed.
> http://trac.sagemath.org/sage_trac/ticket/3863
This is numerical integration. Integration is also still being done
by Maxima, but I'm not sure about how numerical integration is
being done.
Cheers,
Tim.
---
Tim La
g-svn bridge. It's still a work
in progress, though. It doesn't require that Git be
installed. I just wish the reverse functionality was
available.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.
don't even have a spkg yet). And be compatible with
> Sage. That's it.
>
Are the custom libraries going to be .spkg as well? So, people using the
full version of Sage can install them?
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Wate
e to make them available.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
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To unsubscribe from t
es of MATLAB and
Mathematica are the toolboxes that are available. MATLAB at least
makes it
quite easy to package a new toolbox, if we can have a simple way to
make and
distribute new Sage toolboxes, that would go a long way.
Then, if it's clear that particular toolboxes are seeing a lot of use
it allowed
me to finally put faces to some of the names on here.
I'll be watching the others when I can.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To po
don't want
> this, use LGPL'd libraries or similar.
> The main difference of the LGPL is as far as I know that it allows you
> to use an interface to the LGPL'd code without LGPL'ing your own code.
>
Doesn't both Maple and Mathematica make use of GMP
t
GPL compatible. It would be a nice optional package, though.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To post to this group, send email to sage-devel@google
know it's been broken for several versions. I've had
to tell my students to do the integration by hand and then use
Maple to plot for one of my courses. I know others have encountered
it too.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of W
py and lets us know
> what this is.
>
According to the help page:
http://www.maplesoft.com/support/help/view.aspx?path=DrawPlanar
It's just plotting the graphs. Nothing that Sage doesn't already have.
Note that Maple has put all their help pages on-line now.
Cheers,
Ti
your code. It's a pretty
good idea
and maybe something could be done using the Canvas and javascript.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
--~--~-~--~~~---~--~~
To
On Apr 26, 2009, at 6:26 PM, Golam Mortuza Hossain wrote:
>
> Hi Tim,
>
> On Sun, Apr 26, 2009 at 3:36 PM, Tim Lahey
> wrote:
>> I decided to wait until pynac had stabilized a bit and was better
>> integrated into the Sage which appears to be around the 4.0
>&
On Apr 26, 2009, at 2:29 PM, Golam Mortuza Hossain wrote:
>
> Hi,
>
> I am wondering whether anyone is implementing
> Functional derivative using pynac in Sage?
>
> http://en.wikipedia.org/wiki/Functional_derivative
>
> While searching through sage-devel list, I foun
ed sympy much,
but I guess it is since they're planning on improvements.
Cheers,
Tim.
---
Tim Lahey
PhD Candidate, Systems Design Engineering
University of Waterloo
http://www.linkedin.com/in/timlahey
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ture, I'd be
>> happy to hear
>> them.
>>
>> I've now started using GitHub's issues to do bug/issue tracking for
>> the code.
>
> What's the github name?
The issue tracker:
http://github.com/tjl/sage_int_testing/issues
and the main repository:
On Wed, Apr 22, 2009 at 7:03 PM, Carl Witty wrote:
>
>
> Couldn't you just pick random values for all of the symbolic constants, as
> well?
Yes, but over what range? If you do that, you've just ensured that it
is correct for
those points. It also could get expensive if you have multiple
constan
ble to have simplification bugs, but I'll have to rely upon separate
tests of the simplification system.
Cheers,
Tim Lahey.
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sage
he returned result.
I'm currently aiming to finish the test suite just for Sage/Maxima and
I'll go back
and address the various issues (like testing SymPy) once that's complete.
Cheers,
Tim Lahey.
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To post to this group, send em
st has different steps to properly
compare the output to the Schaum's result. The multiple solutions also
pose an additional difficulty.
Cheers,
Tim Lahey.
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but a nice thing is that it's in Python, so it's easy to work with.
>
> Ondrej
At some point I probably should get around to joining that group.
If you have any suggestions for the testing architecture, I'd be happy to hear
them.
I've now started using GitHub's issue
plified, hopefully to a constant.
>
> How does Sympy compare?
As far as I know, it hasn't been tested with it yet. I'm planning support for
it, but I need to do some work in order to get the test suite working with it.
It's on my list.
Cheers,
Tim Lahey.
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