User talk:Fegp59

Hello Fegp59 and Welcome to Wikipedia! Welcome to Wikipedia! I hope you enjoy the encyclopedia and want to stay. As a first step, you may wish to read the Introduction. If you have not already created an account here, note that you do not have to log in to read or edit articles on Wikipedia, but creating an account is quick, free and non-intrusive, requires no personal information, and there are many benefits of having a username. Without a username, your IP address is used to identify you. If you have any questions, feel free to ask me at my talk page — I'm happy to help. Or, you can ask your question at the New contributors' help page. Here are some more resources to help you as you explore and contribute to the world's largest encyclopedia... Getting started Wikipedia Tutorial • How to edit a page • The five pillars of Wikipedia • Manual of Style • Be bold in editing • How to write a great article Getting your info out there Cite your sources • Neutral Point of View • Point of View • Verifiability • Policy Library Getting help New contributors' help page • Where to ask a question • Help Desk • Frequently Asked Questions Getting along Wikiquette • Civility • Sign your posts • Wikipedians • Conflict resolution • Please sign your messages on talk pages with four tildes(~~~~). This will automatically insert your "signature" (your username and a date stamp). The button, on the tool bar above Wikipedia's text editing window, also does this. If you would like to play around with your new Wiki skills the Sandbox is for you. Bduke (Discussion) 10:31, 3 November 2015 (UTC)

I have reverted your edit to Table of spherical harmonics because you did not explain it. Much effort has gone into getting this page right, and it is used by many people. It is of course possible that there are errors, but we can not just accept unexplained changes from just one editor. If you think you are correct, discuss it on the talk page at Talk: Table of spherical harmonics. --Bduke (Discussion) 10:31, 3 November 2015 (UTC)

Hi Brian.

I am a newbie to Wikipedia, and of course would not want to do any damage. I am no expert, just a quantum chemist who is using the table for programming right now (and I am very grateful to those who set it up).

It seems to me I had corrected just a trivial mistyping.

The labels for m=-2 and m=+2 seemed to me to be identical. Both read z^2xy. The m=+2 component appears to differ from the m=-2 component just by the replacement of xy with x^2-y^2, as is of course very reasonable.

Fabio — Preceding unsigned comment added by Fegp59 (talk • contribs) 10:35, 3 November 2015 (UTC)

I have moved you reply here as that is normal practice as it keeps the discussion in one place. Note that you can sign your contribution on a talk page by typing 4 tildas. You could well be correct that this is just a typo and it is not in the main formula. I am going to ask the other people who edit this on the article's talk page, as I am on vacation and do not have access to my usual sources. I am also about to travel from Oxford to London in UK. --Bduke (Discussion) 10:57, 3 November 2015 (UTC)

While I'm not familiar with the nomenclature of real $l=4$ harmonics, Fabio is definitely right that we can't have two $g_{z^{2}xy}$ functions. Again, without knowing the naming conventions, it would indeed seem straightforward to call $Y_{42}=g_{z^{2}(x^{2}-y^{2})}$ after its functional form, but then $Y_{4,\pm 3}$ also lack a precise description by their indices: they could also be named $g_{xz(x^{2}-3y^{2})}$ and $g_{yz(3x^{2}-y^{2})}$, respectively. Obviously, a source would help in this matter. Loudandras (talk) 11:36, 3 November 2015 (UTC)