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

[sage-devel] Have you considered having a Sage Journal?

2020-05-24 Thread Diego Sejas
Hello, Sage Community! I am not completely sure that this is the correct place to propose an idea like this, but I think that here it can be upvoted or downvoted, and commented. I have been thinking for a long time that the Sage Community should have a Journal for everyone of us being able to

[sage-devel] Have you considered having a Sage Journal?

2020-05-24 Thread Diego Sejas
Hello, Sage Community! I am not completely sure that this is the correct place to propose an idea like this, but I think that here it can be upvoted or downvoted, and commented. I have been thinking for a long time that the Sage Community should have a Journal for everyone of us being

[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

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

[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

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;