On 12 November 2010 21:48, Chris Swierczewski wrote:
>> I really believe Sage needs to ship with a number of decent "published"
>> examples. If one looks on any Sage server, one sees a list of published
>> worksheets, many of which are either error messages, sometimes spam, and
>> generally of ver
--
| Sage Version 4.6, Release Date: 2010-10-30 |
| Type notebook() for the GUI, and license() for information.|
--
sage: for r in
Robert Bradshaw wrote:
> [...] For almost
> any kind of linear algebra, you're better off using RDF, or even numpy
> directly.
Thanks for that! Using numpy arrays just gave a new breath of life to
my 8GB ram!
Now the example in my first post takes... 277KB instead of 4.5GB,
which is closer to my
It's not only division (both on Sage 4.5* and on 4.6, with minor
differences in memory usage figures):
sage: get_memory_usage()
811.38671875
sage: A=vector(range(0,7000))*(1/2)
sage: get_memory_usage()
3059.31640625
On Nov 13, 12:30 pm, Robert Bradshaw
wrote:
> On Fri, Nov 12, 2010 at 7:10 PM, J
I don't think sum() method is needed. It's certainly a code bloat.
Could you check that sum() in vector_double_dense can be removed?
(remove it there, do sage -b, run testsuite, see if there were any
errors caused by it)
On Nov 13, 12:59 pm, Maxim wrote:
> If I try to find the sum of a vector of
If I try to find the sum of a vector of floats that way, it works as
expected:
sage: vector([1,float(2),3]).sum()
-> 6.0
However, applying the same logic on a vector made of integers:
sage: vector([1,2,3]).sum()
-> Traceback (click to the left of this block for traceback)
...
AttributeErro
On Fri, Nov 12, 2010 at 10:18 AM, rjf wrote:
>
>
> On Nov 12, 8:46 am, "Dr. David Kirkby"
> wrote:
>> On 11/12/10 04:13 PM, rjf wrote:
> .
>>
>> > It seems to me the obvious first point for "Why Sage" is
>> > that Sage provides access to mathematical software.
>>
>> Well, there are lots of m
On Fri, Nov 12, 2010 at 6:14 PM, Minh Nguyen wrote:
> Hi John,
>
> On Sat, Nov 13, 2010 at 10:49 AM, John H Palmieri
> wrote:
>> (Personally, I think it should be tracked, but this is not a strongly
>> held opinion. One argument the other way: if it's in .hgignore, then
>> the spkg will be small
On Fri, Nov 12, 2010 at 7:10 PM, Jason Grout
wrote:
> On 11/12/10 8:48 PM, Jason Grout wrote:
>>
>> On 11/12/10 6:22 PM, Maxim wrote:
>>>
>>> I get very high memory usage when I do something like:
>>> sage: get_memory_usage()
>>> -> 809.9453125
>>> sage: A=vector(range(0,1))/1
>>> sage: get_me
On 11/12/10 8:48 PM, Jason Grout wrote:
On 11/12/10 6:22 PM, Maxim wrote:
I get very high memory usage when I do something like:
sage: get_memory_usage()
-> 809.9453125
sage: A=vector(range(0,1))/1
sage: get_memory_usage()
-> 5393.2734375
Which is a whooping 4.5GB+ of memory to hold a 1
On 11/12/10 6:22 PM, Maxim wrote:
I get very high memory usage when I do something like:
sage: get_memory_usage()
-> 809.9453125
sage: A=vector(range(0,1))/1
sage: get_memory_usage()
-> 5393.2734375
Which is a whooping 4.5GB+ of memory to hold a 1 float vector...
I would have thought
Hi John,
On Sat, Nov 13, 2010 at 10:49 AM, John H Palmieri
wrote:
> (Personally, I think it should be tracked, but this is not a strongly
> held opinion. One argument the other way: if it's in .hgignore, then
> the spkg will be smaller, and besides, the relevant information is
> already availabl
Hi Chris,
On Fri, Nov 12, 2010 at 5:26 PM, Chris Swierczewski wrote:
> Q: Does this sound like a good thing to have on the Sage website?
Yes. Absolutely.
> Q: How would such a service be implemented? I was thinking about a
> public Sage Notebook of some sort. That way people can play with the
I get very high memory usage when I do something like:
sage: get_memory_usage()
-> 809.9453125
sage: A=vector(range(0,1))/1
sage: get_memory_usage()
-> 5393.2734375
Which is a whooping 4.5GB+ of memory to hold a 1 float vector...
I would have thought more of something along the lines of 2
This question came up on a trac ticket recently: when working on an
spkg, in the patches directory there might be files like
file.py
file.py.patch
Then the spkg-install file copies file.py to the appropriate place in
src, while file.py.patch documents the changes. Certainly
file.py.patch s
Thank you.
On Nov 12, 3:10 pm, David Joyner wrote:
> On Fri, Nov 12, 2010 at 9:04 AM, Johan S. R. Nielsen
>
> wrote:
> > A little C-procrastination and relocation to my own site, and Google
> > is ok:
>
> >http://www.student.dtu.dk/~jsrn/whysage.jpg
>
> +1
>
>
>
> ...
>
>
>
>
>
>
>
>
>
> > --> T
All good points. Also, it is probably the most readable of any
mainstream language (Mathematica is awful in that department). I think
it appeals to researchers in fields other than mathematics computer
science since it can be learned quickly.
On Nov 12, 3:02 pm, v...@ukr.net wrote:
> On Fri, 12 No
On Fri, Nov 12, 2010 at 9:04 AM, Johan S. R. Nielsen
wrote:
> A little C-procrastination and relocation to my own site, and Google
> is ok:
>
> http://www.student.dtu.dk/~jsrn/whysage.jpg
+1
>
...
>
> --
> To post to this group, send an email to sage-devel@googlegroups.com
> To unsubscribe f
On Fri, 12 Nov 2010 10:46:37 -0800 (PST)
kcrisman wrote:
> But now it's a moot point. Maxima uses Lisp; Sage has Python; XYZ has
> WTQ; etc. For some people Python is a selling point; let it be a
> selling point, then.
>
Python is definitely a selling point since
- there already ARE many pe
On Nov 12, 10:46 am, kcrisman wrote:
> > My view is that there has been excessive boosterism for Python,
> Perhaps.
> > So having packages in Python doesn't matter, and therefore it is not
> > really a selling point and
> > maybe should not be mentioned prominently because users don't care??
>
>
> I really believe Sage needs to ship with a number of decent "published"
> examples. If one looks on any Sage server, one sees a list of published
> worksheets, many of which are either error messages, sometimes spam, and
> generally of very low quality.
Or worksheets related to mere homework pro
>
> Perhaps the "free" and "open-source" boxes should be merged, since the
> latter implies the former. However, I did mention that the user can
> verify and contribute to the algorithms he/she uses, which I think is
> an important point.
If you're using free in the FSF/GNU sense of the word, ope
On Nov 12, 6:04 am, "Johan S. R. Nielsen"
wrote:
> A little C-procrastination and relocation to my own site, and Google
> is ok:
>
> http://www.student.dtu.dk/~jsrn/whysage.jpg
Thank you.
On Nov 12, 8:13 am, rjf wrote:
> It seems to me that being free and open source, the first couple of
> poin
> My view is that there has been excessive boosterism for Python,
Perhaps.
> So having packages in Python doesn't matter, and therefore it is not
> really a selling point and
> maybe should not be mentioned prominently because users don't care??
At least pedagogical users care. It is possible Pyt
On Nov 12, 8:46 am, "Dr. David Kirkby"
wrote:
> On 11/12/10 04:13 PM, rjf wrote:
.
>
> > It seems to me the obvious first point for "Why Sage" is
> > that Sage provides access to mathematical software.
>
> Well, there are lots of mathematical software too.
True, but at least it gets you in
On Nov 12, 4:46 pm, "Dr. David Kirkby"
wrote:
> On 11/12/10 04:13 PM, rjf wrote:
>
> > It seems to me that being free and open source, the first couple of
> > points,
> > hardly describes the salient features of Sage, simply because there
> > are
> > tens of thousands of other programs, includin
On 11/12/10 04:13 PM, rjf wrote:
It seems to me that being free and open source, the first couple of
points,
hardly describes the salient features of Sage, simply because there
are
tens of thousands of other programs, including many many losers,
which are also free and open source. It doesn't gr
It seems to me that being free and open source, the first couple of
points,
hardly describes the salient features of Sage, simply because there
are
tens of thousands of other programs, including many many losers,
which are also free and open source. It doesn't grab me.
Wouldn't you describe GIMP,
On 11/12/10 03:10 PM, Dr. David Kirkby wrote:
On 11/12/10 02:56 PM, Simon King wrote:
Hi!
On certain machines, I encounter the problem that the wall time for my
computations is *much* more than the CPU time. For example, on one
Sage is the place to look - use tools supplied with the opera
On 11/12/10 02:56 PM, Simon King wrote:
Hi!
On certain machines, I encounter the problem that the wall time for my
computations is *much* more than the CPU time. For example, on one
machine, the CPU time is 60 minutes, but the wall time is 330 minutes.
On a different machine, the CPU time is 13
On 2010-11-12 15:56, Simon King wrote:
> Hi!
>
> On certain machines, I encounter the problem that the wall time for my
> computations is *much* more than the CPU time. For example, on one
> machine, the CPU time is 60 minutes, but the wall time is 330 minutes.
> On a different machine, the CPU ti
Hi!
On certain machines, I encounter the problem that the wall time for my
computations is *much* more than the CPU time. For example, on one
machine, the CPU time is 60 minutes, but the wall time is 330 minutes.
On a different machine, the CPU time is 13 minutes but the wall time
19 minutes.
So,
A little C-procrastination and relocation to my own site, and Google
is ok:
http://www.student.dtu.dk/~jsrn/whysage.jpg
On Nov 12, 12:16 pm, Minh Nguyen wrote:
> Hi Eviatar,
>
> On Fri, Nov 12, 2010 at 7:15 PM, Eviatar wrote:
> > I made a quick mockup of a possible page, let me know what you th
On 11/12/10 06:26 AM, Chris Swierczewski wrote:
A nifty service provided by some of the Ma* folks are webspaces where
users could upload some powerful research-level. For example:
* Mathematica: http://library.wolfram.com/
* Matlab: http://www.mathworks.com/matlabcentral/fileexchange/
* Maple:
Hi Eviatar,
On Fri, Nov 12, 2010 at 7:15 PM, Eviatar wrote:
> I made a quick mockup of a possible page, let me know what you think
> please:
Where is the mockup you're talking about. Please provide a URL to that
mockup page you created?
--
Regards
Minh Van Nguyen
--
To post to this group, se
> 4. The scipy dev team is currently having a thread about setting up a
> snippet web database for scipy. It's just in the planning stages now; maybe
> we could work together with them on a system we both could use.
That was a long thread! Let me sum it up: Many people liked gist, but
many others
On Nov 10, 11:45 am, pang wrote:
> I searched for "wikiinteract" on trac, and came up with patches with
> no testing at all: 9737, 9729, 9728 and 9623. I couldn't find an
> example that is nicely tested.
On second thought, these are not trivial to split and test. Roughly
every line consists of on
Hi Nick,
On Fri, Nov 12, 2010 at 5:56 AM, Nick Alexander wrote:
> sage: ZZ([1, 2], base=3)
> 7
> sage: ZZ([1, 2], base=3).digits(2)
> [1, 1, 1]
>
> My opinion is that this is short and already well supported, and much
> more general than the special function OP suggests.
Base conversion is an im
On Nov 12, 9:39 am, I wrote:
> Hi,
>
> On Nov 11, 5:05 pm, "Dr. David Kirkby"
> wrote:
>
> > I was just looking at a file in Sage, which lists the dependencies for
> > ECL:. It has:
>
> > $(INST)/$(ECL): $(BASE) $(INST)/$(MPIR) $(INST)/$(TERMCAP) \
> > $(INST)/$(READLINE) $(IN
On Nov 11, 8:54 pm, Tom Boothby wrote:
> > However I disagree a little here about the degree of zero polynomial.
> > I would expect SylvesterMatrix(x^2, 0)
>
> > To be
>
> > [0 0]
> > [0 0]
>
> Why do you expect that? What definition are you using for the Sylvester
> Matrix?
Well, it seems th
On Nov 12, 9:17 am, Eviatar wrote:
> Gah, it won't let me post links. Here it is in binary:
>
> 0110111101000111010001110011101000100010011010010110110101100111001100010011001100110010001011100110100101101101011101100111011001010111001101101111011000110110101100101110
Hi,
On Nov 11, 5:05 pm, "Dr. David Kirkby"
wrote:
> I was just looking at a file in Sage, which lists the dependencies for ECL:.
> It has:
>
> $(INST)/$(ECL): $(BASE) $(INST)/$(MPIR) $(INST)/$(TERMCAP) \
> $(INST)/$(READLINE) $(INST)/$(BOEHM_GC)
>
> which means ECL does not star
Gah, it won't let me post links. Here it is in binary:
0110111101000111010001110011101000100010011010010110110101100111001100010011001100110010001011100110100101101101011101100111011001010111001101101111011000110110101100101110011101010111001100100110100101101101011
I think that the Sage website needs to communicate better the
advantages of Sage, in an approachable and concise manner. There are
some pages discussing this, but they are hidden in the library and are
too text-heavy.
I made a quick mockup of a possible page, let me know what you think
please:
In
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