[sage-devel] Re: sage-1.8
I had the same problem -- my sage/functions directory was missing, and
when I copied it in from an older release everything worked.
Steven
sage-1.8 installed successfully [1] but there's junk [2] on each startup
and other weirdness [3].
Ifti.
+
[1]
===
Writing
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/pysqlite-2.3.2-py2.5.egg-info
real1m3.548s
user0m36.142s
sys 0m19.976s
Successfully installed sqlite-3.3.11
Now cleaning up tmp files.
Making SAGE/Python scripts relocatable...
Making script relocatable
real64m57.838s
user39m20.542s
sys 15m4.382s
To install gap, gp, singular, etc., scripts
in a standard bin directory, start sage and
type e.g., install_scripts('/usr/local/bin')
at the command prompt.
SAGE build/upgrade complete!
172:~/Documents/sage-1.8 weirdalerdos$ make
cd spkg ./install all 21 | tee -a ../install.log
make[1]: Nothing to be done for `all'.
real0m0.046s
user0m0.004s
sys 0m0.005s
To install gap, gp, singular, etc., scripts
in a standard bin directory, start sage and
type e.g., install_scripts('/usr/local/bin')
at the command prompt.
SAGE build/upgrade complete!
172:~/Documents/sage-1.8 weirdalerdos$
+
[2]
===
172:~/Documents/sage-1.8 weirdalerdos$ ./sage
--
| SAGE Version 1.8, Release Date: 2007-01-22 |
| Type notebook() for the GUI, and license() for information.|
--
---
type 'exceptions.ImportError' Traceback (most recent call
last)
/Users/weirdalerdos/Documents/sage-1.8/local/bin/ipython console in
module()
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/sage/all_cmdline.py
in module()
1 nodoctest
2 from sage.all import *
3
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/sage/all.py
in module()
66 from sage.algebras.all import *
67 from sage.modular.allimport *
--- 68 from sage.schemes.allimport *
69 from sage.graphs.all import *
70 from sage.groups.all import *
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/sage/schemes/all.py
in module()
27 from plane_curves.all import *
28
--- 29 from elliptic_curves.all import *
30
31 from plane_quartics.all import *
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/sage/schemes/elliptic_curves/all.py
in module()
22
23
--- 24 from ell_generic import is_EllipticCurve
25
26 from ell_rational_field import cremona_curves,
cremona_optimal_curves
/Users/weirdalerdos/Documents/sage-1.8/local/lib/python2.5/site-packages/sage/schemes/elliptic_curves/ell_generic.py
in module()
32 import sage.misc.latex as latex
33 import sage.modular.modform as modform
--- 34 import sage.functions.transcendental as transcendental
35
36 # Schemes
type 'exceptions.ImportError': No module named functions.transcendental
sage:
++
[3]
===
sage: E = EllipticCurve([1,0])
---
type 'exceptions.NameError' Traceback (most recent call
last)
/Users/weirdalerdos/Documents/sage-1.8/local/bin/ipython console in
module()
type 'exceptions.NameError': name 'EllipticCurve' is not defined
sage:
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[sage-devel] dubious ?? help in 1.8
What does _lcm have to do with valuation in the snippet below? This is version 1.8 upgraded from 1.7.1. The actual function call seems to do what I want it to do, but the help seems a bit off. Also sage: (3).valuation(1) seems to go into an endless loop, but I think I can patch that easily enough by myself. -- Joel sage: n=1 sage: n.valuation?? Type: builtin_function_or_method Base Class: type 'builtin_function_or_method' String Form:built-in method valuation of sage.rings.integer.Integer object at 0xb19cf9bc Namespace: Interactive Source: def _lcm(self, Integer n): Returns the least common multiple of self and $n$. EXAMPLES: . --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
[sage-devel] Re: Dlogs
I'm really glad I'm not writing everything in SAGE from scratch! Definitely. I can put this in this weekend, but if someone doesn't get to it sooner. --David --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
[sage-devel] Re: Dlogs
On Tue, 23 Jan 2007 12:27:47 -0800, David Kohel [EMAIL PROTECTED] wrote: I'm really glad I'm not writing everything in SAGE from scratch! Definitely. I can put this in this weekend, but if someone doesn't get to it sooner. OK, this is now http://sage.math.washington.edu:9002/sage_trac/ticket/210 Check there before doing anything on this to see if it's already been done. William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
[sage-devel] Fwd: Thank you for Sage!
Fan mail... --- Forwarded message --- From: Michael Borysow at .utexas.edu To: [EMAIL PROTECTED] Cc: Subject: Thank you for Sage! Date: Tue, 23 Jan 2007 14:17:24 -0800 Hi Prof. Stein, I just had to say something to one of the developers for Sage, and that's 'Wow!' Sage is exactly what I've been looking for. It merges my beloved language of python with the notebook display of Mathematica (and it looks more attractive to boot!). So, thank you so incredibly much for the large amount of time I'm sure you've put into this. Believe, I'll be telling all my colleagues about Sage. Regards, Michael Borysow --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
[sage-devel] Re: Benchmark
On Tue, 23 Jan 2007 14:09:56 -0800, Kiran S. Kedlaya [EMAIL PROTECTED] wrote: Here's a benchmark I just tried, which annoys me. sage: def test1(): : P.x = PolynomialRing(RationalField()) : t = x^8 - 11*x^7 + x^5 - 1 : for _ in xrange(1000): : t.complex_roots() : sage: time test1() CPU times: user 6.78 s, sys: 0.02 s, total: 6.80 s Wall time: 6.80 sage: def test2(): : t = pari(x^8 - 11*x^7 + x^5 - 1) : for _ in xrange(1000): : t.polroots() : sage: time test2() CPU times: user 6.15 s, sys: 0.00 s, total: 6.15 s Wall time: 6.15 sage: %magma magma: procedure test3() magma: Px := PolynomialRing(RealField(53)); magma: u := x^8 - 11*x^7 + x^5 - 1; magma: for i := 1 to 1000 do magma: t := Roots(u); magma: end for; magma: end procedure; magma: time test3(); Time: 1.200 The thing that bugs me is that Magma does not have some fancy proprietary algorithm for finding roots of a univariate polynomial; it uses PARI! So why are we so much slower? Why do you think MAGMA uses PARI for this? (And this isn't so much a problem with SAGE but with PARI Try the same computation directly in PARI and it is just as slow.) If you really want the answer to only 53-bits precision, by the way, numpy can do it much much faster than MAGMA. For example, sage: import numpy sage: f = numpy.array([1,-11,0,1,0,0,0,0,-1])) sage: numpy.roots(f) sage: array([ 10.99172314+0.j, -0.72174425+0.j, -0.45332013+0.53432014j, -0.45332013-0.53432014j, 0.66182264+0.30451078j, 0.66182264-0.30451078j, 0.15650805+0.67766101j, 0.15650805-0.67766101j]) sage: time v=[numpy.roots(f) for _ in range(1000)] CPU times: user 0.28 s, sys: 0.00 s, total: 0.28 s Wall time: 0.28 That's already about 5 times faster than MAGMA. And I bet that on larger degree numpy beats MAGMA by a lot more... SAGE doesn't use numpy for root finding yet, partly because numpy was added to SAGE only very recently, and I haven't touched the root finding code in a while. I've made this trac ticket #211. William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
[sage-devel] Re: sqlite
On Mon, Jan 22, 2007 at 09:01:57AM -0800, William Stein wrote: Yes. E.g., there is a large table of graphs that one person made, and another very large table of reflexive polytopes in dimension = 4. Both are best queried using SQL. Gonzalo Tornario once made a very nice SQLite database of Cremona's tables of elliptic curves. I have a lot of data that might best be stored as a SQL table. The database with Cremona's tables is up-to-date, I can contribute it and/or the scripts to generate it (bash+perl+wget+pari+sqlite+...). The database currently (conductor up to 130k) weights 500+ Mb, and it takes 2-3 hours to generate (it computes /all/ quadratic twists in the tables). I also have a database for some of William's data on newforms of weight 2, although it is more limited (I believe up to level 5k or so). There is also a database of ternary quadratic forms computed by myself. The data is online at http://www.ma.utexas.edu/users/tornaria/cnt/; unfortunately you cannot do sql queries on the databases, but you can browse around, including taking quadratic twists, etc. Best, Gonzalo --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~--~~~~--~~--~--~---
