[sage-support] Re: valuation() error

2021-06-19 Thread enthor
Well...I think I have resolved that problem. I am still not totally clear on when Sage references Sage variables vs. Python variables. Nevertheless...heh...I'm sure I will find out. But, I would like to restate what I was trying to achieve. Let's say I have a need to display a Question and an An

Re: [sage-support] sage textbook goes GitHub; don't confuse it with the good one ;-)

2021-06-19 Thread Henri Girard
For french : https://smallpdf.com/fr/blog/traduire-un-pdf It's not as good as the nativ one but still not to bad Henri On 20/06/2021 02:58, john_perry_usm wrote: Greetings Five years ago, a couple of colleagues and I began writing a Sage-based textbook to serve a class we teach at our instit

Re: [sage-support] sage textbook goes GitHub; don't confuse it with the good one ;-)

2021-06-19 Thread Henri Girard
Wonderfull, i was waiting for this wonder :) thanks Henri On 20/06/2021 02:58, john_perry_usm wrote: Greetings Five years ago, a couple of colleagues and I began writing a Sage-based textbook to serve a class we teach at our institution. When we announced it to Sage users, we received an en

[sage-support] valuation() error

2021-06-19 Thread enthor
My objective is to concisely define an expression with variables, assign values to the variables, and then compute the answer. Here is what I did today: ┌┐ │ SageMath version 9.3.rc4, Release Date: 2021-04-18 │ │

[sage-support] Arithmetic in Jacobians of Hyperelliptic Curves

2021-06-19 Thread Zachary Scherr
Hi, I believe that I found a disagreement between Sage and Magma in the following calculations: Sage: R. = QQ[] f = 144*x^6 - 240*x^5 + 148*x^4 + 16*x^3 - 16*x^2 - 4*x + 1 H = HyperellipticCurve(f) J = Jacobian(H) P = J(H(0,1))-J(H(0,-1)) (5*P).is_zero() returns True Magma: R := Polynomia

[sage-support] sage textbook goes GitHub; don't confuse it with the good one ;-)

2021-06-19 Thread john_perry_usm
Greetings Five years ago, a couple of colleagues and I began writing a Sage-based textbook to serve a class we teach at our institution. When we announced it to Sage users, we received an encouraging reception and excellent feedback. If that was meant to discourage us, it failed completely. ;-)