Does anybody know if there is a "mirror" tilde accent command in any package? That is, the "wiggling" of the tilde accent going in the other direction.
Something like defining this \backtilde command:
\newcommand{\backtilde}[1]{\overset{\backsim}{#1}}
but not quite. The kerning, sizes, etc... are not the same as with the \tilde{} command.
Related to this: a mirror version of the \vec{} accentuation.
The accents package turns out to be useful:
\documentclass{article}
\usepackage{accents,graphicx}
\newcommand{\backtildeacc}{%
\raisebox{-1.25ex}[.3ex][0pt]{\reflectbox{\normalfont\char"7E}}%
}
\newcommand{\btilde}[1]{\accentset{\backtildeacc}{#1}}
\begin{document}
$\tilde{A}\btilde{A}$
\fboxsep=0pt
\fbox{$\btilde{A}$}\fbox{$\tilde{A}$}
\end{document}
Note If the T1 encoding is used, one needs "03 instead of "7E. The various lengths might need to be adjusted for different font families. For instance, 0.21ex is the right height instead of 0.3ex with lmodern.
\usepackage[T1]{fontenc}, \btilde is too wide. (Actually, I might prefer that wider variant, but it does not match the normal \tilde.) And if additionally there is the line \usepackage{lmodern}, the \btilde is typeset too low, like a strike through the letter. Is there a way to have a \btilde which consistently produces the mirrored counterpart of \tilde, whether those additional packages are loaded or not?
\usepackage[T1]{fontenc} is the culprit. If I load lmodern without [T1]fontenc, the btilde works as expected.
T1 is used, we need "03 instead of "7E. And slightly shorter height when lmodern is the font, 0.21ex instead of 0.3ex.
Try \backsim from the amssymb package. See the image below
You can scale your backsim like this:
\documentclass{article}
\usepackage{graphicx}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}
\[\tilde{A}\]
\[\overset{\backsim}{A}\]
\[\overset{\scalebox{0.5}{$\backsim$}}{A}\]
\end{document}
Still not totally the same, but it could be used as workaround...
{}on it). Finally, you can also use backticks`to mark your inline code as I did in my edit.