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

On 2014-09-19, Jonas Jermann wrote: > Hi again > > I somehow can't get it to work for non-exact fields / CC. > Here is an example: > > x = PolynomialRing(QQ,'x').gen() > F_pol = x^3 - x^2 - 2*x + 1 > F. = NumberField(F_pol, 'lam') > D = 4*lam^2 + 4*lam - 4 > K_pol = x^2 - D > K

[sage-support] Re: Derivatives of bessel_K have the wrong sign

Ok, convert to maxima, derive, convert back to sage works fine. At first a little bit confusing for the unprepared mind though. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, s

Re: [sage-support] Re: Weird! OverflowError: cannot convert float infinity to integer

It is not F[0] it is F(0). :-) The example cited is definitely a bug, perhaps from sage. Note the following: sage: M = matrix(F, [[1],[0]]) sage: type(M) sage: M ) failed: OverflowError: cannot convert float infinity to integer> So, sage doesn

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

Hi again I somehow can't get it to work for non-exact fields / CC. Here is an example: x = PolynomialRing(QQ,'x').gen() F_pol = x^3 - x^2 - 2*x + 1 F. = NumberField(F_pol, 'lam') D = 4*lam^2 + 4*lam - 4 K_pol = x^2 - D K = F.extension(K_pol, 'e') L = CC lam_im = F_po

Re: [sage-support] Re: Weird! OverflowError: cannot convert float infinity to integer

There is definitely something wrong, but what would you expect from the command sage: F[0] Vincent 2014-09-19 6:25 UTC+02:00, Michiel Kosters : > I have a similar bug with the following code: > > n=16 > F.=GF(2^n) > print Matrix([a]), F(0) > print Matrix([F(0)]) > > The last print statement give

[sage-support] Derivatives of bessel_K have the wrong sign

Hello, it seems that the derivatives of bessel_K have the wrong sign: sage: [Bessel(i, 'K')(x).diff(x) for i in range(5)] [1/2*bessel_K(1, x) + 1/2*bessel_K(-1, x), 1/2*bessel_K(2, x) + 1/2*bessel_K(0, x), 1/2*bessel_K(3, x) + 1/2*bessel_K(1, x), 1/2*bessel_K(4, x) + 1/2*bessel_K(2, x), 1/2*bess

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

Can you be more specific about exactly what you were trying to do? This is very vague, just reporting a log without context. Thanks! On Wednesday, September 17, 2014 10:10:06 AM UTC-4, Jacques Avigdor wrote: > > Here the act Log > > > Traceback (most recent call last): > File > "/Application

[sage-support] Re: simplify_full and others disappeared in Sage 6.2??

> > Is this just my computer, or has anyone else experienced this: > > ┌┐ > │ Sage Version 6.2, Release Date: 2014-05-06 │ > │ Type "notebook()" for the browser-based notebook interface.│ > │ Type "

[sage-support] simplify_full and others disappeared in Sage 6.2??

Is this just my computer, or has anyone else experienced this: ┌┐ │ Sage Version 6.2, Release Date: 2014-05-06 │ │ Type "notebook()" for the browser-based notebook interface.│ │ Type "help()" for he

[sage-support] Re: Weird! OverflowError: cannot convert float infinity to integer

I have a similar bug with the following code: n=16 F.=GF(2^n) print Matrix([a]), F(0) print Matrix([F(0)]) The last print statement gives an error OverflowError: cannot convert float infinity to integer For other n, the code does not give an error. Yours, Michiel On Tuesday, July 8, 2014 10:

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

Ok, this was answered on: http://ask.sagemath.org/question/24173/homomorphisms-for-relative-number-fields/ Regards Jonas On 17.09.2014 23:31, Jonas Jermann wrote: Hi How can I define a homomorphism from a relative number field to some other field L which sends (all) the generators to cor