[sage-devel] Re: trouble upgrading to latest stable version

2020-05-24 Thread Anne Schilling
On Sunday, May 24, 2020 at 10:27:19 PM UTC-7, Matthias Koeppe wrote: > > Hi Anne, > > On Sunday, May 24, 2020 at 9:40:42 PM UTC-7, Anne Schilling wrote: >> >> Downloading the Sage mirror list >> CRITICAL [mirror_list|_load:91]: Downloaded mirror list has syntax error: >> error code: 1010 >> Sear

[sage-devel] Re: Pre-Announcement: Global Virtual SageDays 109 - May 28, 2020 (all timezones)

2020-05-24 Thread Matthias Koeppe
On Friday, May 22, 2020 at 2:15:18 PM UTC-7, Matthias Koeppe wrote: > > On Thursday, May 21, 2020 at 10:04:26 AM UTC-7, Matthias Koeppe wrote: >> >> The Global Virtual SageDays 109 will be held on May 28, 2020 (all >> timezones). >> >> I have updated https://wiki.sagemath.org/days109 and created t

[sage-devel] Re: trouble upgrading to latest stable version

2020-05-24 Thread Matthias Koeppe
Hi Anne, On Sunday, May 24, 2020 at 9:40:42 PM UTC-7, Anne Schilling wrote: > > Downloading the Sage mirror list > CRITICAL [mirror_list|_load:91]: Downloaded mirror list has syntax error: > error code: 1010 > Searching fastest mirror > ERROR [mirror_list|_rank_mirrors:145]: Could not reach any m

[sage-devel] trouble upgrading to latest stable version

2020-05-24 Thread Anne Schilling
Hi All, I seem to have trouble upgrading my Sage to the latest stable version: sage anne$ make make -j4 build/make/Makefile --stop ./bootstrap -d rm -rf config configure build/make/Makefile-auto.in rm -f src/doc/en/installation/*.txt src/doc/bootstrap:48: installing src/doc/en/installation/arch.t

Re: [sage-devel] Re: Could someone point me to the code that supports math on symbolic equations?

2020-05-24 Thread Jonathan
Although a good idea, I don't think I can make it simple enough to set up inside a data acquisition environment that depends on Python. This would require installing Maxima and all the connector software. The people using this are unlikely to do anything that requires more than a `pip install..

Re: [sage-devel] Re: Could someone point me to the code that supports math on symbolic equations?

2020-05-24 Thread rjf
It seems to me that the obvious thing is not to extract parts from SageMath, but just use Maxima, which is a part, but also an entire symbolic math system, Your example looks like this: ( assignment is ":" equations use "=". a command is terminated by ";" ) eq1 : p*V = n*r*t ; eq1/V;

Re: [sage-devel] bug in matrix solve over inexact coefficients?

2020-05-24 Thread Markus Wageringel
Don't get me wrong. I would greatly prefer if RR would detect the ill-conditioned cases as well, but, as it stands, this is not implemented. Neither LU nor QR decompositions are supported for RR, so it is not easy to change this. The default implementation for solve_right just computes an echel