[sage-support] How could I fit this data?

2012-08-25 Thread David Kirkby
I'm trying to work out how to solve an engineering problem. I'm hoping Sage can help me, but I can't work out the maths of it. I'm hoping someone here might be able to. A vector network analyzer (VNA) is a bit of electronic test equipment which measures complex impedance values as a function of fr

Re: [sage-support] Re: test whether a system of multivariate polynomial equations is solvable

2012-08-25 Thread Geoffrey Irving
On Sat, Aug 25, 2012 at 4:39 AM, Volker Braun wrote: > The <> notation creates Python variables of the same name, so you shouldn't > use it together with the PolynomialRing(..., "e") constructor. Basically, > you need to be aware that the the string label "a" can be attached to > multiple Python v

[sage-support] Re: Running Sage notebook outside a servers root directory

2012-08-25 Thread Jason Grout
On 8/25/12 10:22 AM, Jason Grout wrote: On 8/25/12 10:12 AM, Stefan wrote: Hello everyone, I compiled and installed Sage 5.2 on my homeserver which worked fine and so the commandline version did. Then I tried to make sage available fom the Internet with notebook(). I found some instructions abo

[sage-support] Re: Running Sage notebook outside a servers root directory

2012-08-25 Thread Jason Grout
On 8/25/12 10:12 AM, Stefan wrote: Hello everyone, I compiled and installed Sage 5.2 on my homeserver which worked fine and so the commandline version did. Then I tried to make sage available fom the Internet with notebook(). I found some instructions about configuring apache, so access to Sag

[sage-support] Running Sage notebook outside a servers root directory

2012-08-25 Thread Stefan
Hello everyone, I compiled and installed Sage 5.2 on my homeserver which worked fine and so the commandline version did. Then I tried to make sage available fom the Internet with notebook(). I found some instructions about configuring apache, so access to Sage is carried through an internal pro

[sage-support] Re: test whether a system of multivariate polynomial equations is solvable

2012-08-25 Thread Volker Braun
The <> notation creates Python variables of the same name, so you shouldn't use it together with the PolynomialRing(..., "e") constructor. Basically, you need to be aware that the the string label "a" can be attached to multiple Python variable names (its OK to do so for the computer but you wi