I just started to play around with "Hom()" and tryed to create a
function mapping
phi:x -> ; phi(x)(y) = with as element in
Hom(ZZ^3,Z) and i was looking for a way to do this without using matrixes.
greatz
Why precisely do you want to do this? Is it entirely so you can write
> f(v), where f i
The two expressions you give may be algebraically equivalent, but
they're not identical. There is no canonical "fully simplified" form
for a general algebraic expression, so you can't expect
full_simplify() to output this non-existant form. If the expressions
are simple enough, like polynomials, yo
I have two expressions:
(x/(2*sqrt(x+1)) + 1/(2*sqrt(x+1)*(sqrt(x+1)+1)))
((x*(sqrt(x+1)+1)+1)/(2*sqrt(x+1)*(sqrt(x+1)+1)))
As you see, they are identical, so full_simplify() method should
return the same result for both expressions. But:
sage: (x/(2*sqrt(x+1)) + 1/(2*sqrt(x+1)*(sqrt(x
+1)+1))).
thanks, I got it.
On Nov 19, 1:56 pm, Alex Leone wrote:
> I think the @fork decorator might do what you want. I've never used it
> though.
>
> @fork(timeout=5.0)
> def f(...):
> ...
>
> - Alex
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I think the @fork decorator might do what you want. I've never used it though.
@fork(timeout=5.0)
def f(...):
...
- Alex
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Suppose I use a sage function and it's taking too long. Is there a way
to invoke the function with a specified time so that when it exceeds
that given time, it will terminate gracefully without completing the
computation?
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On Fri, Nov 19, 2010 at 9:55 AM, BFJ wrote:
> It seems to me that the issue might be that Sage doesn't understand
> how Hom(ZZ^3, ZZ^1) is a (free) module over ZZ.
Correct. H=Hom(ZZ^3, ZZ^1) is a homset in the category of "modules
with basis over ZZ". In Sage, H simply doesn't also have the
str
It seems to me that the issue might be that Sage doesn't understand
how Hom(ZZ^3, ZZ^1) is a (free) module over ZZ. If you could coerce it
into that category, then the object H = Hom(ZZ^3, ZZ^1) would have
generators induced by those of ZZ^3 and ZZ^1 and then specifying a map
in Hom( ZZ^3, Hom( ZZ^
I failed to get this to work last time I tried, so gave up. Maybe I
will try again.
Thanks,
John
On Nov 19, 3:14 am, Dan Drake wrote:
> On Sat, 30 Oct 2010 at 02:53PM -0700, John Cremona wrote:
> > Thanks to both for the advice. The minimal tex file from Jason works
> > fine. I do have all t
Hi,
Everything runs fine now (after fighting with nfs).
I've even built the new maxima and ecl, patched everything (one hunk
failed, looked at it, it must be a test which has benn added after
4.5.1 release...)
I'm now trying to run doctests of interfaces/maxima.py.
I'll run it on the Sunblade 1500
On 18 November 2010 13:07, Jean-Pierre Flori wrote:
> You were right, there is something wrong with the libgfortran file
> under SAGE_ROOT/local/lib/ .
> It was a symlink to "./../lib/libgfortran.so", strange.
>
> Sage is working with the libraries you posted above. Thanks !
I'll need to make sur
On 18 November 2010 09:01, Jean-Pierre Flori wrote:
> Hi,
>
>> Can you send me the output of
>>
>> $ gcc -v
>> $ gfortran -v
>> $ command -v gcc
>> $ cmmand -v gfortran
>>
>> on your system.
>>
> Here it is:
> bash-3.00$ gcc -v
> Reading specs from /usr/local/packages/gcc3/bin/../lib/gcc/sparc-sun
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