[SciPy-User] Understanding parameters of scipy.special Mathieu_cem function etc.

[Mark Bakker]

> From: Austin Tobin <austin.tobin at gmail.com>
> To: scipy-user at python.org
> Subject: [SciPy-User] Understanding parameters of scipy.special
>         Mathieu_cem function etc.
> Message-ID:
>         <CAKYpchqjtMLvpvnwy-+X=SUFPhKUKt0XykBk8SFRnz-jr8YSeA at mail.
> gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> I am trying to relate the Mathieu equation found in Wikipedia Mathieu
> Equation <https://en.wikipedia.org/wiki/Mathieu_function/> to the one
> implemented in scipy.special. In Wikipedia there are 3 inputs, a,q and the
> parameter along which the integration proceeds.
>
> mathieu_cem takes three inputs, an order (integer), a characteristic
> parameter and the the parameter along which the integration proceeds in
> degrees. I am trying to relate a and q to the order and characteristic
> parameter.
>
> If it helps I am trying to simulate a quadrupole mass spectrometer with a
> and q being trapping parameters.
> Regards,
> Austin
>
>
The wikipedia link is broken. Could you fix that and maybe post some
numbers that you are expecting? I am pretty sure the q is the
characteristic number, the degrees are the local elliptic coordinates and
the order is, well, the order of the function.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scipy-user/attachments/20170726/dd277d1b/attachment.html>