this is definitely a bug, right ? sage: k= CyclotomicField(4, "i") sage: poly= PolynomialRing(k, "x") sage: x= poly.gen() sage: p= 3; K= NumberField(x^2 - p, "r") sage: i= K( k.gen() ) sage: CDF(i) 2.31897834269e-14 - 1.0*I
So i is converted to roughly -i... which can makes sense as it's just a choice of a 4-th root of unity. However if you try CDF( k.gen() ) you get 6.12323399574e-17 + 1.0*I and that makes my life harder. My question is this : i have a bunch of numbers living in such fields K as above, where p varies. I suspects these numbers are all equal. How can i coerce them into some common field where i can test for equality ? (CC just doesn't work, neither does QQbar). thanks! pierre PS sage 4.1.1. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
