---
tags: dispersion, minutes
---

# PlasmaPy Dispersion Meeting | Thursday 2021 August 19 at 14:00 PT / 17:00 ET

### Video Conference Information
* Instant messaging: [Matrix](https://element.im/app/#/room/#plasmapy:openastronomy.org) and [Gitter](https://gitter.im/PlasmaPy/Lobby)
* [GitHub Minutes Repository](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes)
* [Dispersion Sub-directory](https://github.com/PlasmaPy/plasmapy-project/tree/master/minutes/dispersion)
* [PlasmaPy on GitHub](https://github.com/PlasmaPy/plasmapy) ([pull requests](https://github.com/PlasmaPy/plasmapy/pulls), [issues](https://github.com/PlasmaPy/plasmapy/issues))
* [PlasmaPy Enhancement Proposals on GitHub](https://github.com/PlasmaPy/PlasmaPy-PLEPs)
* [PlasmaPy Google Calendar](https://calendar.google.com/calendar?cid=bzVsb3ZkcW0zaWxsam00ZTlrMDd2cmw5bWdAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ)
* GitHub Project: None at the moment

## Agenda (please feel free to edit or add items)

1. Introductions
2. GitHub Project: None at the moment
3. Discuss PR 1189
8. Reschedule meeting due to conflict w/ Shane's classes
9. Issues
1. ~~[#973](https://github.com/PlasmaPy/PlasmaPy/issues/973): Two-fluid dispersion functionality~~ CLOSED
2. [#1237](https://github.com/PlasmaPy/PlasmaPy/issues/1237): [EPIC] Two fluid dispersion relations
10. Pull requests in progress
1. [#1189](https://github.com/PlasmaPy/PlasmaPy/pull/1189): Hollweg solver
11. Pull requests **MERGED**
1. [#1208](https://github.com/PlasmaPy/PlasmaPy/pull/1208): Refactor plasmapy.dispersion

## Attendees

* Erik
* Shane
* Elliot
* Nick
* Ben

## Action Items

***Erik***
* Update issue #1237 with two-fluid dispersion project detials
* Send out when2meet poll to reschedule meeting

## Minutes

* Starting w/ the next dispersion meeting, Shane has a class conflict
* need to reschedule meeting to avoid conflicts
* Erik will send out a when2meet poll
* Shane's PR was merged. Yay! 🎉
* Hirose (2004) method with cold ion assumption, Eq. 7 in Bellan (2012)
* Assumes T_i = 0
* But T_i would still need to be one of the parameters that gets entered to match the interface
* Shouldn't include T_i as a parameter
* Use a factory function that will handle T_i appropriately
* Possibility of using `**kwargs`

    def f(**kwargs):
        # here kwargs is a dict with all of the 
        # keyword arguments in it (with argument names as keys
        # and the values)

* The contributor guide for the latest docs have an [updated documentation guide](https://docs.plasmapy.org/en/latest/development/doc_guide.html)