[sage-support] Re: [sage-devel] How to input a large system of equations?

2014-09-17 Thread Vincent Delecroix
I had a look at NestList in Mathematica and there is nothing out of the box to compute [x, f(x), f(f(x)), f(f(f(x))), ...] in Python. But still you can do the following one line program sage: f(x) = 3.9*x*(1-x) sage: orbit = [0.3] sage: for _ in range(10): orbit.append(f(orbit[-1])) sage: print

[sage-support] specifying homomorphism from a relative number field

2014-09-17 Thread Jonas Jermann
Hi How can I define a homomorphism from a relative number field to some other field L which sends (all) the generators to corresponding specified elements? Example: F_pol = x^2-x-1 F = NumberField(F_pol, 'lam') K_pol = x^2 + 4 K = F.extension(K_pol, 'e') L = QQbar lam_im = QQbar(F_pol.roots()[1

[sage-support] Re: [sage-devel] How to input a large system of equations?

2014-09-17 Thread Vincent Delecroix
The sage-devel list is intended for development and not for questions related to Sage usage. For that purpose there are: - the website ask.sagemath.org - the googlegroups sage-support (to whom I transfered this e-mail) Please use them for your future usage. You might have a look at http://ask.sa

[sage-support] Does not work with chrome either Safari. Here the Log

2014-09-17 Thread Jacques Avigdor
Here the act Log Traceback (most recent call last): File "/Applications/Sage-6.3.app/Contents/Resources/sage/src/bin/sage-notebook", line 34, in notebook() File "lazy_import.pyx", line 358, in sage.misc.lazy_import.LazyImport.__call__ (build/cythonized/sage/misc/lazy_import.c:3000)