Another Way to Conclude an Answer

Question

I understand that \boxed{} would give a box surrounding a math. However, I want to make answer this way instead of full rectangular box.

Is there a way to make this command to, say, \halfboxed{x=3}?

Thanks,

Answer 1

You might like tcbhighmath from the tcolorbox package:

Here's a complete MWE:

% arara: pdflatex
\documentclass{article}

\usepackage[most]{tcolorbox} 

\begin{document}

\[
\tcbhighmath[frame hidden,colback=white,enhanced,overlay unbroken={%
\draw[thick,red,double] (interior.north east)--(interior.south east)--(interior.south west);
},]{x=3}
\]

\end{document}

Of course, you'd probably prefer to use something like:

\tcbset{Panha/.style={frame hidden,colback=white,enhanced,overlay unbroken={%
\draw[thick,red,double] (interior.north east)--(interior.south east)--(interior.south west);}}}

in your preamble, so that you can simply use \tcbhighmath[Panha]{x=3} in the document, for example:

% arara: pdflatex
\documentclass{article}

\usepackage[most]{tcolorbox} 

\tcbset{Panha/.style={frame hidden,colback=white,enhanced,overlay unbroken={%
\draw[thick,red,double] (interior.north east)--(interior.south east)--(interior.south west);}}}

\begin{document}

\[
\tcbhighmath[Panha]{x=3}
\]

\end{document}