I have encountered a problem with factor in SR which can be avoided but it
shows a problem. If I run this code:
var('t',domain='complex')
var('r,x,y',domain='real')
h= r^6+r^4*t^2 + 4*r^4*t*conjugate(t) + r^4*conjugate(t)^2 +
r^2*t^2*conjugate(t)^2 - r^2*t^2 - r^2*conjugate(t)^2 + t^2*conjugate
I forgot to add, it worked in 8.1 version and it does not work since 8.4
(at least). Adding the option dontfactor=[some variable not involved in h]
it works but much slower.
El miércoles, 24 de julio de 2019, 13:31:08 (UTC+2), Enrique Artal escribió:
>
> I have encountered a problem with factor
I'm using Manjaro Linux with packages:
openblas-lapack (https://aur.archlinux.org/packages/openblas-lapack/)
python-numpy-openblas
(https://aur.archlinux.org/packages/python-numpy-openblas/)
python-scipy-openblas
(https://aur.archlinux.org/packages/python-scipy-openblas/)
They work well in ot
El miércoles, 24 de julio de 2019, 15:33:02 (UTC+2), John Robson escribió:
>
>
> How can I inform to sage to use the cblas from openblas-lapack?
>
>
You need to provide a cblas.pc file in /usr/lib/pkgconfig/ so that
pkgconfig can detect the library. Something like
libdir=/usr/lib
includedir=/us
SageMath has built-in functions to compute the regulator and the
fundamental unit of a quadratic field. The regulator of a quadratic field
is the log of the absolute value of the fundamental unit.
So, the following code should print out the same number on each line.
But, as you can check, it
I have matrices B and C of size (m,n) over integer with m>n.
I know there is matrix A of size (m,m) such that
AB=C. How to find A efficiently in Sage?
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WORKED Perfectly.
Antonio, Thank You Very Much!!!
On Wednesday, July 24, 2019 at 10:20:38 AM UTC-4, Antonio Rojas wrote:
>
>
>
> El miércoles, 24 de julio de 2019, 15:33:02 (UTC+2), John Robson escribió:
>>
>>
>> How can I inform to sage to use the cblas from openblas-lapack?
>>
>>
> You need to
I have installed sagemath in a docker container . I have made a simple
sagemath code like this:
sines = [plot(c*sin(x), (-2*pi,2*pi), color=Color(c,0,0), ymin=-1, ymax=1)
for c in sxrange(0,1,.2)]
a = animate(sines)
a.show()
instead of obtaining an animation in the browser ( like a sagemath
i
The code is for a jupyter notebook of course.
Il giorno mercoledì 24 luglio 2019 18:40:56 UTC+2, Francesco ha scritto:
>
> I have installed sagemath in a docker container . I have made a simple
> sagemath code like this:
> sines = [plot(c*sin(x), (-2*pi,2*pi), color=Color(c,0,0), ymin=-1, ymax=1)
On Wednesday, July 24, 2019 at 7:43:10 AM UTC-7, Michael Beeson wrote:
>
> SageMath has built-in functions to compute the regulator and the
> fundamental unit of a quadratic field. The regulator of a quadratic field
> is the log of the absolute value of the fundamental unit.
>
So, the follow
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