LaTeX.org

Ok, maybe that was my situation. Thank you both for your attention.

Thank you for your explanation, Stefan. (:

Hello,

today, i discovered a false positive of spam: a message from latex.org that i received a private message. I saw only its subject in the email, and the link where i could read it. But the link does not open anything¹, and i have no PM in my account. Is this possible? Why i am not the only ...

I want to draw in tikz-3dplot things that we usually draw to make drafts of fairly simple problems, that involve 3 dimensional space. But i am having trouble to understand the function \tdplotsetmaincoords (of tikz-3dplot) and use it.

The documentation i found, which is the texdoc.net[...]tikz ...

The documentation there for tikz seems much newer than the one i had. Thank you

Hello,

i would like to read a complete manual with all the options i can put in every possible item to be put in what "\usepackage{tikz, tikz-3dplot}" provides.

Just for the tikz package, it is easy to find

https://www.bu.edu/math/files/2013/08/tikzpgfmanual.pdf

by searching for "tikz ...

Most questions i may do in the next days, maybe one or two weeks, are for the same kind of thing: something with a mathematic detail

Feel free to post your questions! Just make a new topic for each new question, easier to see and to answer than in a long thread.


Of course i will do new threads ...

[...]

(And $\Beta$ does not work for me! Why? I have these packages in my source: amssymb, amsmath, siunitx, gensymb, physics, [T1]{fontenc}, [utf8]{inputenc}, [portuguese]{babel}, hyphenat.)

Just this little issue, that i found by accident, trying to find that "mathcal B", remains:

In a file ...

Hi,

it looks like \mathcal :

\documentclass{article}
\begin{document}
$\mathcal{B}$
\end{document}

No additional package needed.


Hello, Stefan. "Math calligraphy" - so that was the secret. Exactly what i wanted.

Most questions i may do in the next days, maybe one or two weeks, are for the ...

How to make this particular capital B letter? I tried to search for that... but i do not know how i should - what should be the common path for that, beyound asking help, like here?

letter.png

Is it not $\mathbb{B}$, \textbf{B} or $\beta$.

(And $\Beta$ does not work for me! Why? I have these ...

\vert (...) \vert % to abs. value -> not best
\abs{ (...) } % this is

\Vert (...) \Vert % norm of vectors -> not the best either
\norm{ (...) } % this is

Wikipedia was my source of secure information. But (today, now) it is wrong for this detail. Can someone less newbie than me update the ...