ASKSAGE: Sage Q&A Forum - Latest question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Wed, 07 Aug 2019 06:30:52 -0500unable to simplify to a complex interval approximationhttp://ask.sagemath.org/question/47417/unable-to-simplify-to-a-complex-interval-approximation/ Dear all,
Once simplified, here is the problem. This is something that goes smoothly with Sage 8.6 and not with Sage 8.1. It turns out that Sage 8.1 is the one bundled with Ubuntu 18.04 LTS so I'm interested in solving this issue. I'm also interested in this question in itself. Here it is:
C = ComplexIntervalField(200)
C(-psi(1/3))
That work's just fine in Sage 8.6 but Sage 8.1 answers:
*TypeError: unable to simplify to a complex interval approximation*
Of course C(psi(1/3)) works just fine.
Many thanks in advanceOlivier R.Wed, 07 Aug 2019 06:30:52 -0500http://ask.sagemath.org/question/47417/From number field to interval fieldhttp://ask.sagemath.org/question/9217/from-number-field-to-interval-field/Hello,
I would like to understand why the following works
sage: K1.<s1> = NumberField(x^3 - 2, 's1', embedding=RR(1.26))
sage: RIF(s1)
1.259921049894873?
and the following does not
sage: K2.<s2> =NumberField(x^3 - 2, 's2', embedding=CC(-0.63,1.09))
sage: CIF(s2)
Traceback (most recent call last)
...
TypeError: unable to coerce to a ComplexIntervalFieldElement
Thank you,
VincentvdelecroixWed, 08 Aug 2012 00:39:23 -0500http://ask.sagemath.org/question/9217/