in general, $A_{(\alpha\beta)}=\frac{1}{2}(A_{\alpha\beta}+A_{\beta\alpha})$. Is there any convention regarding multi-indices, and the notation $A_{(\alpha\beta)}$ when $\alpha,\beta\in[1,n]^m$?
e.g., $A_{(\alpha\beta)}=\frac{1}{m!}(A_{(\alpha)(\beta)}+A_{(\beta)(\alpha)})$ or something like that?
but I think the simplest encoding of a facepalm into unicode is the multicharacter combination https://upload.wikimedia.org/wikipedia/commons/3/3b/Paris_Tuileries_Garden_Facepalm_statue.jpg
This is a list of notable and commonly used emoticons, or textual portrayals of a writer's moods or facial expressions in the form of icons. Originally, these icons consisted of ASCII art, and later, Shift_JIS art and Unicode art. In recent times, graphical icons, both static and animated, have joined the traditional text-based emoticons; these are commonly known as emoji.
Emoticons can generally be divided into three groups: Western (mainly from America and Europe) or horizontal (though not all are in that orientation); Eastern or vertical (mainly from east Asia); and 2channel style (originally...
There's a subtle bug in your LaTeX code, which somehow broke it between your answer-box preview and the comment box. The formula looks correct, but if I just copy-paste your formula (removing some code in the middle so it doesn't break the answer display) and add then dollar signs, I get this
$$...
↑ relevant
if there's too much text without spaces, some bit of code along the chain will sneak in some zero-width spaces, which is why you get those weird $\LARGE A$
@Mostafa Talking about your own suicide is either a) a grossly inappropriate joke or b) a serious issue you should discuss with the relevant helplines and a psychologist. Neither belongs into SE chat.
@Mostafa I'm not saying that I'll just block a user I genuinely believe to be suicidal "because they are annoying", and I am insulted you would think that. There actually is a special feature to notify Community Managers about suicidal users, who will then reach out to the user.
Anonymous
@Mostafa How do you ever differentiate between a person who is trolling and raising fake suicide alerts and one who is telling the truth? Also, it is impossible for us to help you even if you actually intend to carry out the act. Heck, we don't even know who you are and where you stay.
@Blue No it is not impossible at all to help a suicidal person online. Sometimes just feeling that somebody likes him and wants to help him or understands him is enough for that person to change his mind
@AccidentalFourierTransform Ah, yes, sort of, although I am not sure why you want the space to be over an anitcomuting field
I mean, the fermionic operators are still just operators on a Hilbert space, you should be able to multiply them with complex numbers, not by some weirdo skew-field numbers
Classically, what you need is "super-Poisson bracket anticommuting", which follows from the correct definition fo the super-Poisson bracket for the spinor fields.
This is rather a technical question for experts in General Relativity. An accessible link would be an accepable answer, although any additional discussion is welcome.
GR has well known solutions relating to single Black Holes: Schwarzchild, Rotating & Rotating with Charge. These solutions demons...
Are there are any mathematical expressions in physics that will always be equal one or to a number which is almost equal to one.
If there are any I would highly appreciate if you could show me and tell me the name of it/them.
In an optimal world, that question would have been closed before anyone answered it, and the roomba would just have silently axed it. In the imperfect world we live in, it stayed open for a year and attracted two upvoted answers.
@ACuriousMind yes, but we don't live in an optimal world. we live in a world where that lived long enough for someone to leave this shining example of an answer.
@0celoñe7 It's not a judgement of the user - but that question is just a horrible fit for our site. It doesn't fit in any tag, it doesn't have any clear scope...
It seems that there is an automated process that can result in questions getting tagged as untagged, but it should not be possible for users to generate questions with this tagging. (The example is from SciFi.SE, but I think the rule should apply network wide.)
If no other mechanism exists the m...
Are there are any mathematical expressions in physics that will always be equal one or to a number which is almost equal to one.
If there are any I would highly appreciate if you could show me and tell me the name of it/them.
Yeah, there's not a huge difference [read: barely any, if at all] between 1080p and 4K anyway, unless I'm really close to the screen - I don't have a second monitor, though, so there's maybe a difference there