ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 20 Feb 2024 00:29:27 +0100Could FLINT/ARB-functions be run multi-threaded under Sage?https://ask.sagemath.org/question/76105/could-flintarb-functions-be-run-multi-threaded-under-sage/A number of FLINT/ARB functions, for instance the integral, could be sped up considerably by simply including this command in FLINT/ARB C-program:
flint_set_num_threads(N);
with N the number of the desired threads/available cores.
Is a similar command available when using FLINT/ARB through SageMath? RuudHTue, 20 Feb 2024 00:29:27 +0100https://ask.sagemath.org/question/76105/Ghost numbers when using ARBhttps://ask.sagemath.org/question/76066/ghost-numbers-when-using-arb/Maybe a very naive question, but when I code something like:
RDD=RealBallField(256)
RDD(3.1)*RDD(2.1)
I obtain:
[6.510000000000000461852778244065128704839826135899304117285652827862296732064351 +/- 9.03e-80]
as the output. Where does all the noise after the 15th digit come from and how could I get rid of it?
Or am I not allowed to increase the accuracy above 53 when using ARB in SageMath?RuudHSun, 18 Feb 2024 18:27:56 +0100https://ask.sagemath.org/question/76066/Is it possible to use Arb-library commands directly in Sagemath?https://ask.sagemath.org/question/41811/is-it-possible-to-use-arb-library-commands-directly-in-sagemath/ I would like to use some commands/functions from the high performance/precision [Arb-library](http://arblib.org) that in turn builds on the Flint-library. Searching the web, I did find references that some commands from both libraries already underpin directly or indirectly the Sagemath environment, however basic commands like for instance:
arb.pi()
don't seem to be supported (or better, I couldn't get them to work yet).
What I am after is to use Flint and Arb functions within Python like in [this example](http://fredrikj.net/blog/2015/01/arb-and-flint-in-python/), but then under the Sagemath umbrella. Is this already possible?
Thanks.RuudHThu, 29 Mar 2018 00:43:30 +0200https://ask.sagemath.org/question/41811/