# Difference between revisions of "DispersiveWiki:Community Portal"

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This wiki looks like a great resource for people like me who don't deal with PDE's full time, but need help every once in a while. One request: could someone compile a page discussing the notation? As a physicist, I hardly ever see (for example) Δ used to denote the Laplacian; usually, it's ∇<sup>2</sup>. Without a central notation page, it's hard to decipher some of the equations. And does y<sub>x</sub> mean the partial derivative of y with respect to x? Thanks. [[User:JessRiedel|JessRiedel]] 10:32, 18 February 2010 (UTC) | This wiki looks like a great resource for people like me who don't deal with PDE's full time, but need help every once in a while. One request: could someone compile a page discussing the notation? As a physicist, I hardly ever see (for example) Δ used to denote the Laplacian; usually, it's ∇<sup>2</sup>. Without a central notation page, it's hard to decipher some of the equations. And does y<sub>x</sub> mean the partial derivative of y with respect to x? Thanks. [[User:JessRiedel|JessRiedel]] 10:32, 18 February 2010 (UTC) | ||

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## Revision as of 07:05, 23 March 2010

This is the portal for discussing the general Dispersive Wiki project and for making announcements. You can sign your name and timestamp by writing three or four tildes ~~~ at the end of your message, and use : at the start of a message to indent. Use == (title) == to start a new topic.

Older discussion has been archived here.

Would you like to help out? Suggested projects are posted on our current projects page.

## Connections to other Wikis

There is a list of Math Wiki's on Wikipedia. See for example the collection of PDE related pages on wikipedia. For basic concepts in PDE, perhaps we should further develop those pages. For more specialized resources like a bibliography, it may be better to use this space. Colliand 11:28, 15 September 2006 (EDT)

## Notation

This wiki looks like a great resource for people like me who don't deal with PDE's full time, but need help every once in a while. One request: could someone compile a page discussing the notation? As a physicist, I hardly ever see (for example) Δ used to denote the Laplacian; usually, it's ∇^{2}. Without a central notation page, it's hard to decipher some of the equations. And does y_{x} mean the partial derivative of y with respect to x? Thanks. JessRiedel 10:32, 18 February 2010 (UTC)