User talk:Fegp59


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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 $$g_{z^2xy}$$ 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)