[Tex/LaTex] Symbol for encoding error: black diamond with white question mark �

symbols

I would like to add this symbol: � to a beamer presentation.
It is shown when something went wrong with the encoding.

Sadly, I can't simply include this symol:

[53]
! Package inputenc Error: Unicode char \u8:� not set up for use with LaTeX.
See the inputenc package documentation for explanation.

and I don't have any idea how to get it in LaTeX

(An image is not the solution I would like to use!)

Detexify didn't help either.

Description of the symbol (to make it easier to find):

a black diamond with a white question mark within or
a black sexagon with a white question mark
seems to be "\xa0" in sed

How is this symbol � called? How can I print it with LaTeX?

Best Answer

Following David Carlisle's suggestion here's a TikZ solution:

\documentclass{standalone}

\usepackage{tikz}
% w/o following space!
\newcommand{\quem}{\tikz[baseline=(wi.base)]{\node[fill=black,rotate=45,inner sep=.1ex, text height=1.8ex, text width=1.8ex] {};%
\node[ font=\color{white}] (wi) {?};}}

\begin{document}

 Some  \quem Text

\end{document}

You may alter the size of the black triangle by playing with inner sep and keep in mind that there is no space an the end of the macro.

Related Solutions

[Tex/LaTex] “inputenc Error: Unicode char \u8” error while trying to write a degree symbol (invisible character)

If you're getting literally that error—with no visible character after the \u8:—then what's probably happening is that you have some sort of invisible or space unicode character in your document. For instance, on my Mac, if I hit option-space, I get a non-breaking space, which gives an error that looks like that. You also might have some other character; a zero-width breakable space, for instance. If you copied and pasted your error, looking at the source of this page indicates that you might have a soft hyphen in your source (Unicode character 0xAD, representing a valid hyphenation point but not typeset unless there's a word-break). Thus, find the line it's occurring on, and comb through that line until you find it. Retype it if necessary, but a good editor should let you find it. Once you delete it, then your first three methods should work.

When I use your header (commenting out \frechbsetup, which doesn't seem to exist, and using \documentclass{article}), $^{\circ}$ renders as a largeish circle in the superscript position, $\deg$ renders as the upright text "deg", and \textdegree renders as a smaller circle. A literal ° doesn't work by default. To make it work, you can use \DeclareUnicodeCharacter{B0}{\textdegree}. This tells inputenc to treat the Unicode character 0xB0, the °, as though it were \textdegree, which is what you want. You could also use this to see if your problem is the soft hyphen; insert \DeclareUnicodeCharacter{AD}{\Huge [ICI]} to get the text [ICI] rendered into your document in huge letters wherever there's a soft hyphen. (Of course, if there's some other invisible character, you'll just get the error.)

Also, although I've never used it, you could try using XeLaTeX instead of PDFLaTeX; it has full UTF-8 support out of the box.

[Tex/LaTex] Bitcoin symbol in LaTeX

Three examples, from here:

\def\bitcoinA{%
  \leavevmode
  \vtop{\offinterlineskip %\bfseries
    \setbox0=\hbox{B}%
    \setbox2=\hbox to\wd0{\hfil\hskip-.03em
    \vrule height .3ex width .15ex\hskip .08em
    \vrule height .3ex width .15ex\hfil}
    \vbox{\copy2\box0}\box2}}

and

\def\bitcoinB{\leavevmode
  {\setbox0=\hbox{\textsf{B}}%
    \dimen0\ht0 \advance\dimen0 0.2ex
    \ooalign{\hfil \box0\hfil\cr
      \hfil\vrule height \dimen0 depth.2ex\hfil\cr
    }%
  }%
}

and

\def\bitcoinC{\leavevmode\rlap{\hskip.5pt-}B}

Best Answer

Related Solutions

[Tex/LaTex] “inputenc Error: Unicode char \u8” error while trying to write a degree symbol (invisible character)

[Tex/LaTex] Bitcoin symbol in LaTeX

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