is sqrt5.cs.washington.edu down?
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What would be a good way for a new mac mini owner to
help fix the Xcode 4 build problems for Sage? Those of
us who just bought our first macs after the Lion release have
Xcode 4 by default. I don't see any reason to back off
to Xcode 3, as the Sage (4.7.2.alpha2) config urges.
There's no specifi
There is trac #11759. It fixes plotting of the two platonic solids that are
created as duals.
I posted there a minimal patch, which just adds the right properties to
these two; however, the question is whether the dual of a closed "thing"
(I don't know how generic the corresponding code really i
On Sep 2, 12:52 am, Dan Drake wrote:
> I can confirm that by using the LDFLAGS workaround and fiddling with the
> Symmetrica makefile, both spkgs compile, and the resulting Sage build
> passes all tests on my Oneiric VM.
>
> --- Dan Drake
> - http://mathsci.kaist.ac.kr/~drake
I too can con
I agree that there are some issues if you want to change options in the
plot. I've recently reorganized the polyhedron class (and added a PPL
backend next to cddlib) in #11634, #11763 but I haven't touched the plotting
code.
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On Sep 10, 11:11 am, Jonathan wrote:
> If you are doing everything through Sage, would having Jmol print the
> rotation information to the web page be enough?
Possibly. That would result in essentially the same work-flow as
Sébastien's solution, but with less effort. If I were new to Sage I
would
Lines 1483 and 1484 in polyhedra.py are
projection.render_vertices_3d(width=3, color='green', **kwds) +
\
projection.render_wireframe_3d(width=3, color='green', **kwds)
+ \
Setting the color and width here prevents the user from doing this at
the command line (see example below).
On Sat, Sep 10, 2011 at 11:45 AM, Dima Pasechnik wrote:
> well, on #11779 I am in minority, as some people refuse to acknowledge that
> exponentiation is often
> a binary operation (say, on positive reals)...
> If anyone is still willing to review this ticket, and not just demonstrate
> how stubb
well, on #11779 I am in minority, as some people refuse to acknowledge that
exponentiation is often
a binary operation (say, on positive reals)...
If anyone is still willing to review this ticket, and not just demonstrate
how stubborn they can be, this will be appreciated.
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To post to this
If you are doing everything through Sage, would having Jmol print the
rotation information to the web page be enough? Then the user could
do a cut and paste to use with the renderer they want. Completely
automating things would require more fiddling.
Jonathan
On Sep 9, 12:04 pm, Nils Bruin wro
Hi!
I think I have solved the main problem!!
I am now able to do:
sage: class Foo:
: __metaclass__ = FastHash
: def __hash__(self):
: print "computing hash"
: return id(self)
:
sage: f = Foo()
When calling the hash for the first time, it
Hi Maarten,
On 10 Sep., 15:32, Maarten Derickx
wrote:
> You should really learn about metaclasses. The basically allow you to change
> the way classes are created. Normally this is done by type. I.e. the
> following are equivalent.
>
> sage: class Foo(object):
> : def a(self):
> :
You should really learn about metaclasses. The basically allow you to change
the way classes are created. Normally this is done by type. I.e. the
following are equivalent.
sage: class Foo(object):
: def a(self):
: return 1
:
sage: f=Foo()
sage: f.a()
1
sage: Foo=typ
By the way, if we really start using multiple inheritance a lot, we should
also make a list in the documentation somewhere about the order in wich you
should inherit. Just always prepending is a really stupid idea since it will
lead to errors all the time! The same goes for just always postpendi
By the way, if we really start using multiple inheritance a lot, we should
also make a list in the documentation somewhere about the order in wich you
should inherit. Just always prepending is a really stupid idea since it will
lead to errors all the time! The same goes for just always postpendi
Hi Maarten,
On 10 Sep., 13:17, Maarten Derickx
wrote:
> But maybe you could explain why you want to override the __hash__ of
> particular instances
It's because I am currently collecting ideas of how to conveniently
add a fast hash to existing stuff in Sage. One idea was to add a fast
__hash__ d
Oh, and there is of course also a workaround without hacking the python
source code. That would be by implementing the default __hash__ of a class
to first look up wether the instance.__dict__.has_key('__hash__') and if so
then call the instance method.
But maybe you could explain why you want
The reason for this is that the c source code wich is executed when the
build in function Hash is executed on a python object wich has as C type
PyObject then following code is executed (in the latest python 2.6).
PyObject_Hash(PyObject *v)
{
PyTypeObject *tp = v->ob_type;
if (tp->tp_ha
By the way, if we really start using multiple inheritance a lot, we should
also make a list in the documentation somewhere about the order in wich you
should inherit. Just always prepending is a really stupid idea since it will
lead to errors all the time! The same goes for just always postpendi
Hi Simon,
When I read your post I had a hard time believing that your simple example
actually caused trouble with inheritance. After playing around with it, it
became clear this is a cython issue:
This works:
sage: cython("cdef class FastHash(object):\nxyz_blaha=1")
sage: class Foo(FastHas
Hi!
I am trying to change the hash function of an instance after it is
created. I tried to override the __hash__ attribute of the instance
with a bound method created from a custom hash function. It worked for
, but not for instances of :
sage: def my_hash(self):
: print "custom hash"
Hi Leif,
On 9 Sep., 22:14, leif wrote:
> For the record: Found "some"; mailed you off-list.
What you sent me off-list looks very promising, with an of something
like
[00394 0.000s] E = EllipticCurve('198b')
[00395 1.440s] E.prove_BSD(verbosity=Integer(1),
secs_hi=Integer(1))
[00403 0.00
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