ASKSAGE: Sage Q&A Forum - Latest question feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Fri, 27 Sep 2019 14:34:51 -0500Conjugate multiplication of square roothttps://ask.sagemath.org/question/48086/conjugate-multiplication-of-square-root/ Is there a simple way to simplify a formula using conjugate multiplication of the square roots? For example, when I perform
var('a,b,d')
exp = 1/(a+b*sqrt(d))
exp.full_simplify()
I would like to get
(b*sqrt(d) - a)/(b^2*d - a^2)
but what I actually get is just the form that I started with. Even if I specify the assumptions
assume(d,'real')
assume(d>0)
the conjugate multiplication does not happen automatically. I would like to be able to tell Sage, that I want the conjugate multiplication. In some cases that are relevant to me, the conjugate multiplication would simplify my expressions significantly.TommiFri, 27 Sep 2019 14:34:51 -0500https://ask.sagemath.org/question/48086/