Re: [sage-devel] Re: ssh fail

Mine suddenly started working overnight. I know this was the case for at least one other person. I assume something was done on the server. Eviatar On Jul 5, 2016 2:12 AM, "Julien Lavauzelle" wrote: > Hi, > > I made the git-trac update and I got the same 'Permission d

Re: [sage-devel] Re: ssh fail

It is now working for me! Not sure what happened. Eviatar On Thursday, 30 June 2016 23:34:49 UTC-7, Dima Pasechnik wrote: > > perhaps adding an invalid ssh key still breaks the communication between > git server and trac... > Can they still push changes to the git server? > >

[sage-devel] Fwd: The results of some integration test.

Thought this might be of interest to sage-devel. On Wednesday, 4 September 2013 10:01:07 UTC-7, Peter Luschny wrote: > > Recently two integration test suites were discussed at sci.math.symbolic > [1], [2]. > > I executed the tests with Sage and put the results on my webpage [3]. > Not all results

Re: [sage-devel] Re: Status of special functions in Sage

Thank you. http://trac.sagemath.org/ticket/15024 will fix this. On Wednesday, 11 September 2013 03:34:05 UTC-7, Jesus Torrado wrote: > > Hi all, > > With respect to the spherical Bessel functions, I found that for some Real > arguments one may find a bug related to the way Sage interprets Maxima

[sage-devel] Re: Status of special functions in Sage

s for functions that don't have them. On Tuesday, 10 September 2013 17:24:42 UTC-7, rjf wrote: > > > > On Tuesday, September 10, 2013 1:36:02 PM UTC-7, Eviatar wrote: >> >> Hello, >> >> I made a table of the status of special functions in >> Sage<ht

[sage-devel] Status of special functions in Sage

making improvements to functions in Sage. Eviatar -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this grou

[sage-devel] Should integer-like complex numbers be coerce-able into ZZ?

Hello, I noticed the following discrepancy: sage: ZZ(RR(3)) 3 sage: RR(3) in ZZ True sage: ZZ(CC(3, 0)) TypeError: unable to coerce to an integer sage: CC(3, 0) in ZZ False It's useful in some contexts to be able to recognize integer-like objects, and it seems that doing x in ZZ is the most co

[sage-devel] Re: Sympy update regarding Sage

The upgrade to 0.7.3 is now ready for review at http://trac.sagemath.org/ticket/14694. On Saturday, 17 August 2013 13:20:31 UTC-7, Eviatar wrote: > > The SymPy–Sage interface needs some work in general; many special > functions in SymPy don't have `_sage_` methods, and thus can&

[sage-devel] Re: Sympy update regarding Sage

The SymPy–Sage interface needs some work in general; many special functions in SymPy don't have `_sage_` methods, and thus can't be converted back to Sage. Maybe Sage should use its conversions table like it does for Maxima. The patch http://trac.sagemath.org/ticket/15057 adds conversions for Sa

Re: [sage-devel] Re: should bool(x > 0) be False or an exception?

I changed the code to return an exception if the truth value is unknown and ran `sage -testall`. Here are the results: sage -t devel/sage/sage/tensor/differential_form_element.py # 43 doctests failed sage -t devel/sage/sage/tensor/differential_forms.py # 1 doctest failed

[sage-devel] Review requested for Google Summer of Code patches

math.org/ticket/14996#trac-add-comment> - Cannot plot functions that use mpmath if complex numbers occur in the image: #14984 <http://trac.sagemath.org/ticket/14984> - evaluate log gamma for complex input: #12521<http://trac.sagemath.org/ticket/12521> Any help would b

[sage-devel] Re: should bool(x > 0) be False or an exception?

Maxima does have an unknown answer for comparisons. I'm in favour of the exception. On Wednesday, 9 April 2008 19:18:48 UTC-7, Carl Witty wrote: > > I'd like to reopen discussion of #2781, "bool() for SymbolicEquation > should raise an error when it doesn't know the answer". Jason created > a

Re: [sage-devel] Re: 3 GSoC projects for Sage

andom arguments from specified domains? I'm open to any suggestions. In any case, the benchmark framework is going to be a relatively minor part of the project. Eviatar -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe f

Re: [sage-devel] GSoC project: Mathematical functions library

On Tuesday, 28 May 2013 14:04:24 UTC-7, kcrisman wrote: > > > > On Tuesday, May 28, 2013 3:17:25 PM UTC-4, Benjamin Jones wrote: >> >> Awesome! Ping me if you need someone to help with code review. >> >> > +1, especially at SD 48 - looking forward to meeting you. > Thanks, looking forward to meet

Re: [sage-devel] GSoC project: Mathematical functions library

Thank you Benjamin! I will probably take you up on that offer. On Tuesday, 28 May 2013 12:17:25 UTC-7, Benjamin Jones wrote: > > Awesome! Ping me if you need someone to help with code review. > > -- > Benjamin Jones > benjami...@gmail.com > > > On Tue, May 28

[sage-devel] GSoC project: Mathematical functions library

://www.risc.jku.at/research/combinat/software/GeneratingFunctions/pub/mallinger96.pdf> > and > 2<http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.6502&rep=rep1&type=pdf> > . My mentors for this project are Flavia Stan and Burcin Erocal. Now is the Communi

[sage-devel] Re: Integer vs. int in python

I couldn't find the code, but I guess that the error here is not occurring due to an isinstance call; apparently that is discouraged and is not common in the standard library: http://www.canonical.org/~kragen/isinstance/ On Wednesday, 15 May 2013 16:39:57 UTC-7, Keshav Kini wrote: > > Volker Bra

[sage-devel] Re: Integer vs. int in python

When you index an iterable the __index__ method is used, so Sage integers will work in many contexts. On Tuesday, 14 May 2013 12:06:35 UTC-7, John H Palmieri wrote: > > Why does Python handle Sage Integers well in some cases but not in others? > For example: > > $ sage --python > Python

[sage-devel] GSL returning nonsense for divergent integrals

74>. GSL correctly returns an error for divergent integrals with the code here<http://www.physics.ohio-state.edu/~ntg/780/gsl_examples/qagiu_test.cpp>, which looks quite similar to sage/gsl/integration.pyx. Does anyone know what's going on? Eviatar -- You received this message because

[sage-devel] Re: GSOC 2013

What about implementing Google's constraint programming library ( https://code.google.com/p/or-tools/)? It can be useful for problems in discrete mathematics, and would give Sage capabilities that it appears that no other mathematical software has. On Friday, 8 March 2013 01:43:43 UTC-8, mmarco

[sage-devel] Re: Normalization of a vector

I've posted a new patch at http://trac.sagemath.org/sage_trac/ticket/13393, if anyone wants to help review. On Wednesday, 19 September 2012 11:55:24 UTC-7, Chris wrote: > > It was pointed out to me that vector normalization in Sage is not doing > what most people would think it should do. Rather

Re: [sage-devel] Re: Normalization of a vector

Hmm, I think I agree. Why does leading_coefficient() behave backwards anyway? On Saturday, 1 December 2012 04:44:10 UTC-8, John Cremona wrote: > > I don't think "monicize" is a word. For polynomials, the function in > Sage is called .monic(): > > sage: x=polygen(QQ) > sage: p=3*x+1 > sage: p

Re: [sage-devel] Re: Normalization of a vector

e **for** keeping this, perhaps in a different name, that would > reflect this. Like `reduce(v)` or perhaps, `echelonize(v)` for instance. > > Regards, > ~KnS > > > On Sat, Dec 1, 2012 at 3:06 AM, Eviatar >wrote: > >> Hello, >> >> I was planning to work

[sage-devel] Re: Normalization of a vector

Hello, I was planning to work on the patch for this; however, is "normal form" known terminology for dividing a vector by the leading entry? A Google search returns no such use. Wouldn't it be better for it to be named something like divided_by_leading, to remove ambiguity and potential confus

[sage-devel] Re: Proposed solution to Maxima precision problem

Here's a possible way to solve the precision problems with Maxima. This replaces RealNumbers and RealLiterals with variables before simplifying an Expression. from sage.symbolic.expression_conversions import Converter class DoNothing(Converter): def arithmetic(self, ex, operator): r

[sage-devel] Re: Sage (tm)

What about "Sagemath"? That's already used for the URLs, and doesn't deviate too much from "Sage". I assume people could keep calling it Sage as long as the official branding was changed. On Thursday, 31 May 2012 08:06:43 UTC-7, William wrote: > > Hello, > > As Sage grows, we may have to face m

[sage-devel] Re: Inconsistent behaviour with solve and precision

u describe. > > > > On Tuesday, June 12, 2012 1:47:09 AM UTC+1, Eviatar wrote: >> >> solve has inconsistent behaviour when using exact numerical >> representations of numbers. >> >> For example: >> >> sage: solve(sin(x) == 0.5, x) >> [x == 1

[sage-devel] Re: Question/Poll on 3D plot behavior

install the Oracle Java under Ubuntu. > > Jonathan > > On Tuesday, June 12, 2012 6:48:31 PM UTC-5, Eviatar wrote: >> >> The image generation is working great on Google Chrome on Linux, with >> IcedTea. However, the color and mesh options don't all work. Only some

[sage-devel] Re: Question/Poll on 3D plot behavior

The image generation is working great on Google Chrome on Linux, with IcedTea. However, the color and mesh options don't all work. Only some of the colours do (the lighter ones, for some reason), and the mesh and translucency options don't seem to do anything except causing crashes. On Monday,

[sage-devel] Re: Inconsistent behaviour with solve and precision

Here's another worrying behaviour: sage: solve(log(x) == 0.50001, x) [x == sqrt(e)] On Monday, 11 June 2012 17:53:17 UTC-7, Eviatar wrote: > > It seems Maxima does this by default. Any way to disable it? > > On Monday, 11 June 2012 17:47:09 UTC

[sage-devel] Re: Inconsistent behaviour with solve and precision

It seems Maxima does this by default. Any way to disable it? On Monday, 11 June 2012 17:47:09 UTC-7, Eviatar wrote: > > solve has inconsistent behaviour when using exact numerical > representations of numbers. > > For example: > > sage: solve(sin(x) == 0.5, x) > [x == 1/

[sage-devel] Inconsistent behaviour with solve and precision

solve has inconsistent behaviour when using exact numerical representations of numbers. For example: sage: solve(sin(x) == 0.5, x) [x == 1/6*pi] sage: arcsin(0.5) 0.523598775598299 sage: solve(log(x) == 0.5, x) [x == sqrt(e)] sage: e^0.5 1.64872127070013 Shouldn't this be consistent? It seems

[sage-devel] Re: Question/Poll on 3D plot behavior

Looks much better! I have no problems with it requiring the extra click, assuming it generates the still image fairly quickly. Is the viewing angle for the still customizable? Will it still behave the old way in the terminal? On Monday, 11 June 2012 12:36:24 UTC-7, kcrisman wrote: > > At #12299

[sage-devel] Re: Scientific notation and integers

I see. The difference in memory consumption is definitely an issue. On Friday, 1 June 2012 15:03:00 UTC-7, Nils Bruin wrote: > > One reason to not interpret scientific notation as integers is to > avoid unintended huge memory consumption. Most of the time, scientific > notation is meant to denot

[sage-devel] Scientific notation and integers

An AskSage question brings up a good point: shouldn't scientific notation work for integers? 3e1 returns a RealLiteral, not an Integer. Python also does this; 3e1 is a float. But wouldn't it be better if the preparser detec

[sage-devel] Re: StackOverflow ads

I did it last year (see here), and I don't think anyone is working on it now. I'd give you the xcf file, but I can't find it. Anyway, I'm not sure if improving last year's one is

[sage-devel] StackOverflow ads

Hello, StackOverflow free advertising for open-source projects is open again. We did one last year , which apparently got 25 hits, but the other projects had si

[sage-devel] Re: trac.sagemath.org

I like the new colour scheme as well. The yellow was kind of jarring. On Sunday, 27 May 2012 22:13:41 UTC-7, William wrote: > > Hi, > > Warning: we at sd40.5 [1] are coloring the bikeshed [2]. > > [1] http://trac.sagemath.org/sage_trac/wiki/sd40.5 > [2] http://trac.sagemath.org/sage_trac/ > >

[sage-devel] Re: Possible bug in find_maximum_on_interval

Is there a ticket for this? I've also encountered this before. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage

[sage-devel] Re: find_fit and logs

Never mind, I needed to add another variable inside the log: a*log(b*x+c) -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.co

[sage-devel] find_fit and logs

Hello, There seems to be a major problem with find_fit and logarithms; see http://aleph.sagemath.org/?q=6d615153-7ec1-4a2a-a98d-14b66649fa5d. It seems any combination of variables and data returns 1.0. It works fine with sin, for example. This is not a problem with the server, as I'm getting t

[sage-devel] Re: Physical constants

Now that I look through http://physics.nist.gov/cuu/Constants/RevModPhys_80_000633acc.pdf, I've decided not to implement uncertainty (except as an attribute of the constant object), since taking into account the correlation coefficient between any two constants is more difficult than I thought

[sage-devel] Re: Physical constants

Yes, I know. But it's not implemented as Sage objects. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel U

[sage-devel] Re: Physical constants

The auto-update should be easy to implement. However, now that I've looked into error propagation, an interval seems like a very wrong way to represent uncertainty in physical measurements (apparently Mathematica does *not* do this; I don't know why I thought that). So the only alternative I se

Re: [sage-devel] Re: Physical constants

Sorry that I wasn't clear. I meant the actual object representing a number with uncertainty; for example, 4.0 +- 0.25. It's not quite an interval, since operations are handled very differently. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this grou

[sage-devel] Re: Physical constants

Hello, I'm working on implementing an error propagation class, which is quite easy. However, the type system/coercion is confusing me. Any ideas about what the parent should be? Thank you. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, s

Re: [sage-devel] Include ../../../../whatever -- uh?

> > > > PS1: I had a hard time with my first sentence : "there are a lot of > > > places" or "there is a lot of places" ?! Hopefully what I wrote is > > > right... > > > > "there are many places" > > Oh, so neither of the first things that came to me was any good? Good > to know... > I'm pretty s

Re: [sage-devel] Physical constants

@Jonathan Thank you for the ideas. I had previously just implemented it by copying the current NIST values (the same way SciPy does it), but an automatic update would be good. What would be a good way to store a cache? Maybe in a separate text file as a Python dictionary? This would save the tr

Re: [sage-devel] Physical constants

Thank you, that's what I thought. I'll do it outside of GSoC anyway though. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.c

[sage-devel] Physical constants

ed in high school physics classes. Not only would the constants be easily accessible, but the dimensional analysis can help confirm or reject an answer. Do you think this would be enough for GSoC? Thank you, Eviatar -- To post to this group, send an email to sage-devel@googlegroups.com To u

[sage-devel] Re: Naming runs of Sage

This is now Trac #12598: http://trac.sagemath.org/sage_trac/ticket/12598 -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/

[sage-devel] Consistency for trigonometric function division by zero

Hello, Following up on https://groups.google.com/d/topic/sage-devel/B32U02-ucWI/discussion, there is also a problem with the consistency of trigonometric functions: sage: tan(pi/2) Infinity sage: csc(pi) ZeroDivisionError: Symbolic division by zero I think this should be standardized for all t

[sage-devel] Re: Ubuntu 11.10 testers needed

I also get this on Sage 4.7.2 -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.o

[sage-devel] Re: Ubuntu 11.10 testers needed

It seems ATLAS is failing again: IN STAGE 1 INSTALL: SYSTEM PROBE/AUX COMPILE make[3]: *** [build] Error 255 make[3]: Leaving directory `/home/eviatar/Desktop/sage-4.8.alpha6/spkg/build/atlas-3.8.4/ATLAS-build' make[2]: *** [build] Error 2 make[2]: Leaving directory `/home/eviatar/Desktop

Re: [sage-devel] Behaviour of n()

Oh, I see, thanks. It is definitely not "Due to numerical instability", though. This should be fixed in the patch. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, vi

[sage-devel] Behaviour of n()

sage: n(pi - 3).n(prec=2) 0.12 sage: n(pi - 3, prec=2) 0.00 Why the difference? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.goo

[sage-devel] Re: public single cell server

It's still down. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org

[sage-devel] Re: public single cell server

Yes, that was it. Not a list, sorry. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sag

[sage-devel] Re: public single cell server

It broke again. I'm pretty sure it's a timeout issue this time, since I was iterating over a large list. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this g

[sage-devel] Re: public single cell server

Ah, okay. Would there be any load problems if more people used it? I ask because I'm working on a simple Chromium/Chrome extension for it. Great work by the way! I think it has a lot of potential. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this g

[sage-devel] Re: public single cell server

Try the server. I think it's still running. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://

[sage-devel] Re: public single cell server

I'm sorry, I was testing it and tried "while 1: print 'Hello world'". It seems to still be working on that, and doesn't output anything anymore. Maybe a timeout is necessary? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to

[sage-devel] Re: public single cell server

One problem: random doesn't work. It generates the same value every time. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com

[sage-devel] Re: RuntimeError: ECL says: THROW: The catch MACSYMA-QUIT is undefined.

Oh, I see. However, this is not made explicit in the documentation, and it does work with symbolics sometimes. For example, find_maximum_on_interval(-x^2 + 9*x, 1, 3) -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-de

[sage-devel] RuntimeError: ECL says: THROW: The catch MACSYMA-QUIT is undefined.

I'm getting a strange error with the following command: find_maximum_on_interval(-x^2 + 9*x, 4.4, 8) this returns the error: RuntimeError: ECL says: THROW: The catch MACSYMA-QUIT is undefined. I tried this on 4.7.2, 4.7.1, and on the single-cell server, and the same thing occurs. -- To pos

[sage-devel] Re: Consistency for undefined expressions

I am aware of this; however, the log of 0 is not defined, b^n=0, unless the base is also 0. As a limit, it can be evaluated to -Infinity. However, Sage typically does not use the limit of an undefined expression, as can be seen by 1/0 returning an error. -- To post to this group, send an email

[sage-devel] Re: Consistency for undefined expressions

Thank you for the information. However, I do think Sage acts inconsistently with logarithms. Why should this work: sage: log(0) -Infinity but not this: sage: log(2, 0) ValueError: m must be positive Both of these are undefined, but only one returns an error. -- To post to this group, send a

[sage-devel] Re: Consistency for undefined expressions

They are correct if using the limit definition. However, the signed zero is strange. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://group

[sage-devel] Consistency for undefined expressions

Hello, Sage interprets expressions that are undefined differently when the input is an Integer or a RealNumber. For example, sage: 1/0 ZeroDivisionError sage: 1./0 +infinity sage: log(2, 0) ValueError sage: log(2., 0) -0.000 Is there any rationale for it to behave this way? --

[sage-devel] Re: Animating 3D plots

Haven't tried it, but this functionality would be very useful. Have you considered making a ticket on Trac (http://trac.sagemath.org/sage_trac/)? Other people could then change the code. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send

[sage-devel] Purple

It seems the icons on the main page as well as the favicon were changed from blue to purple. Why is this? I think it looked better before; now it looks somewhat washed-out. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sag

[sage-devel] Re: Writing a piece about import in the developers guide.

http://wiki.python.org/moin/PythonSpeed/PerformanceTips#Import_Statement_Overhead has some good information. On Aug 29, 5:33 pm, Robert Bradshaw wrote: > On Mon, Aug 29, 2011 at 4:21 PM, William Stein wrote: > > On Mon, Aug 29, 2011 at 2:56 PM, Maarten Derickx > > wrote: > >> At the last sage-d

[sage-devel] Re: SAGER OOT in online docs

TinyMCE interprets dollar signs as the delimiters for LaTeX code, so I don't see how this can be fixed without breaking LaTeX functionality. The authors of the tutorial should escape the dollar signs (\$); this fixes the problem. It would be very useful to be able to use Sage variables in TinyMCE

[sage-devel] Re: How to perform a sage command from a web page?

You can write a Python CGI file which interacts with the Sage interpreter instead: #!SAGEPATH from sage import * print RR(4) The problem with this is that you have to launch Sage every time. It would probably be better to use the single-cell server which is now in development: https://github.com/

[sage-devel] Re: units and addition or subtraction

variables called m, K, J, W etc. Is there an easy way to get a > behaviour like in Mathematica? > > On Aug 2, 9:29 pm, Eviatar wrote: > > > > > > > > > It seems WolframAlpha evaluates the limit of the > > expression:http://www.wolframalpha.com/input/?

[sage-devel] Re: quarter-page flier

Those are great! I think they should be put up on http://www.sagemath.org/library-marketing.html as well. On Aug 2, 3:39 pm, Jason Grout wrote: > I designed a quarter-letter page sized flier to hand out at Mathfest. > The current design is here: > > http://sage.math.washington.edu/home/jason/sage

[sage-devel] Re: units and addition or subtraction

It seems WolframAlpha evaluates the limit of the expression: http://www.wolframalpha.com/input/?i=%28calorie%2Fcentimeter%5E2%2F+minute%29%2F%28kelvin-kelvin%29. On Aug 2, 12:21 pm, Eviatar wrote: > I don't really see this as a bug. Units are treated as variables, so > it makes sen

[sage-devel] Re: units and addition or subtraction

I don't really see this as a bug. Units are treated as variables, so it makes sense. Are you suggesting that 0 * kelvin should be left unevaluated, and then not give an error when it is the denominator? On Aug 2, 7:49 am, Stan Schymanski wrote: > Dear all, > > This is a bug-report or feature requ

[sage-devel] Re: Simplify not maintaining precision?

This is now #11643, http://trac.sagemath.org/sage_trac/ticket/11643. On Aug 1, 4:25 pm, Nils Bruin wrote: > On Aug 1, 1:42 pm, Eviatar wrote: > > > Oh, I just assumed the interface with Maxima would maintain precision. > > It could. Maxima does have a notion of multiprecisio

[sage-devel] Re: Simplify not maintaining precision?

Oh, I just assumed the interface with Maxima would maintain precision. On Aug 1, 1:03 pm, kcrisman wrote: > On Aug 1, 3:17 pm, Eviatar wrote: > > > Is this a known bug? > > Perhaps it is better to say that it is a confusing feature. > > sage: x.simplify? > >    

[sage-devel] Simplify not maintaining precision?

Is this a known bug? sage: a = RealField(200)(8.987551787368175506591796875e9) sage: a 8.987551787368175506591796875000e9 sage: var('y') y sage: b = (a * x).mul(y, hold=True) sage: b (8.987551787368175506591796875000e9*x)*y sage: c = (b / (x

[sage-devel] Re: Spam from sage-devel

Yes, I think they forged the email From address, but I'm not sure. > It did not seem to actually come from googlegroups. > > > > > > > > On Mon, Aug 1, 2011 at 12:10 AM, Eviatar wrote: > > Hello, > > > I just got the following email from the address sa

[sage-devel] Spam from sage-devel

Hello, I just got the following email from the address sage- de...@googlegroups.com: Want to become a SAP expert? Want to have a Certificate of SAP? SAP Consultan Earn More Than $1000/Day... Dear SAPer, Why you should choose a career in SAP? You might already know that it is one of the best and

[sage-devel] Re: Femhub

mpy, NumPy, etc. On Jul 22, 9:01 pm, William Stein wrote: > On Fri, Jul 22, 2011 at 8:57 PM, Eviatar wrote: > > Oh, I see. It would be nice if Sage was more modular. > > > Good luck with Qsnake! > > And things like Qsnake are possible... because Pytho

[sage-devel] Re: Femhub

Oh, I see. It would be nice if Sage was more modular. Good luck with Qsnake! On Jul 22, 7:51 pm, Ondřej Čertík wrote: > On Fri, Jul 22, 2011 at 6:19 PM, William Stein wrote: > > On Fri, Jul 22, 2011 at 5:56 PM, Eviatar wrote: > >> Just out of curiosity: why are you forking

[sage-devel] Re: Femhub

Just out of curiosity: why are you forking a separate project instead of developing Sage? On Jul 22, 2:35 pm, Ondřej Čertík wrote: > Hi Thierry, > > On Thu, Jul 21, 2011 at 10:21 PM, Thierry Dumont > > wrote: > > Hello, > > > I juts read that Femhub (http://code.google.com/p/femhub/and many othe

[sage-devel] Re: Importing units into module

p level. > David > > > > > > > > On Thu, Jul 21, 2011 at 17:36, Eviatar wrote: > > I can't see how to solve this. > > > I import units, which import sage_eval, which imports symbolic, which > > imports physical_constants; thus the circular import. How can

[sage-devel] Re: Importing units into module

ther. On Jul 21, 2:17 am, Eviatar wrote: > Oh, thanks, that helps. I guess I'll have to restructure the code. > > On Jul 21, 2:06 am, Burcin Erocal wrote: > > > > > > > > > Hi, > > > On Thu, 21 Jul 2011 00:42:38 -0700 (PDT) > > > Eviat

[sage-devel] Re: Importing units into module

Oh, thanks, that helps. I guess I'll have to restructure the code. On Jul 21, 2:06 am, Burcin Erocal wrote: > Hi, > > On Thu, 21 Jul 2011 00:42:38 -0700 (PDT) > > > > > > > > > > Eviatar wrote: > > I am working on a physical constants mod

[sage-devel] Importing units into module

- AttributeErrorTraceback (most recent call last) /home/eviatar/sage-4.7-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux/ local/lib/python2.6/site-packages/IPython/ipmaker.pyc in force_import(modname) 64 reload(sys.modules[modname]) 65 else: --->

[sage-devel] Re: 2011 Spies Sage Development Prize

Congratulations! -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org

[sage-devel] Sage download page

I notice that the download link on the main page links to the Linux download page, with a link to other systems in a small font. Wouldn't it be better for it to link to http://sagemath.org/download.html, which includes downloads for all supported operating systems? -- To post to this group, send

[sage-devel] Re: Very global variable

I can confirm it works. :) On Jul 17, 6:42 am, William Stein wrote: > On Fri, Jul 15, 2011 at 11:58 AM, Eviatar wrote: > > This is quite easy to do. Just add the variable you want to ~/.sage/ > > init.sage. > > That might work (I'm not 100% sure), so long as you add

[sage-devel] Sage settings

Hello, I think there should be a list of Sage "settings" somewhere in the documentation. These seem to be quite well-hidden. These are the ones I know of: -implicit_multiplication (assumes brackets and spaces for multiplication) -pretty_print_default (prints LaTeX by default) -automatic_names (do

[sage-devel] Re: Very global variable

This is quite easy to do. Just add the variable you want to ~/.sage/ init.sage. On Jul 15, 11:45 am, VictorMiller wrote: > I'd like to have a python "very global" variable -- i.e. one which > will be unique, not only across all worksheets in a notebook, but > across ALL notebook sessions on a ser

[sage-devel] Re: sage-4.7 release schedule

I cannot build ATLAS on 64-bit Ubuntu 11.04, getting this bug: http://trac.sagemath.org/sage_trac/ticket/9385#comment:40 -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more option

[sage-devel] Re: random() and the random module

Just a note: the Sage versions rely on the Python random module. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sa

[sage-devel] Re: No user input in Sage Notebook?

Thank you. Do you have any idea how a Javascript variable could be passed to Python? Setting a prompt (using html()) is easy enough, as well as outputting the result using document.write, but of course for it to be of any use it has to be interpreted by Python. -- To post to this group, send an e

[sage-devel] No user input in Sage Notebook?

Hello, I noticed user input (raw_input(), input()) does not currently work in the notebook. There is a ticket about this, http://trac.sagemath.org/sage_trac/ticket/314, but it looks like it was misunderstood and closed. While it may seem of limited use in a mathematical software, there are in fa

[sage-devel] Re: Updating the Developer's Walk-Through

I agree with the second point. This information is useful. On Feb 21, 10:07 pm, "D. S. McNeil" wrote: > (1) I just started playing with this stuff, and found queues much > nicer than cloning; it's worth   It might be good to add a few > explanations to the page of what to do in common-screwup cas

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