How can I strikeout words in math mode (similar to \sout with \usepackage{ulem} in text mode)? I've tried \usepackage{cancel} and \(\cancel{1+1=2}\) but that draws a diagonal line.
Math Mode – How to Strikeout Text in Math Mode
math-modestrikeout
Related Solutions
You can modify Frédéric's code so that \hcancel receives four more mandatory arguments controlling the vertical and horizontal shifting for the starting and ending points:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc}
\newcommand{\hcancel}[5]{%
\tikz[baseline=(tocancel.base)]{
\node[inner sep=0pt,outer sep=0pt] (tocancel) {#1};
\draw[red] ($(tocancel.south west)+(#2,#3)$) -- ($(tocancel.north east)+(#4,#5)$);
}%
}%
\begin{document}
\begin{equation}\label{eq:1}
\hcancel{$h_1 \land h_2 \land h_3 \land h_4 \land h_5 \land h_6 \land h_7 \land h_8 \land h_9 \land h_{10}$}{0pt}{0pt}{0pt}{0pt}
\end{equation}
\begin{equation}\label{eq:2}
\hcancel{$h_1 \land h_2 \land h_3 \land h_4 \land h_5 \land h_6 \land h_7 \land h_8 \land h_9 \land h_{10}$}{-3pt}{3pt}{3pt}{-2pt}
\end{equation}
\end{document}
The new syntax:
\hcancel{<text>}{<start. point horiz. shifting>}{<start. point vertical shifting>}{<end. point horiz. shifting>}{<end. point vertical shifting>}
EDIT: using the xparse package, the definition of the new command is much more flexible; using something like
\usepackage{xparse}
\DeclareDocumentCommand{\hcancel}{mO{0pt}O{0pt}O{0pt}O{0pt}}{%
\tikz[baseline=(tocancel.base)]{
\node[inner sep=0pt,outer sep=0pt] (tocancel) {#1};
\draw[red] ($(tocancel.south west)+(#2,#3)$) -- ($(tocancel.north east)+(#4,#5)$);
}%
}%
allows the use of \hcancel{<text>} for the standard behaviour of the command as defined by Frédéric and to use the four (now optional) arguments to control the horizontal/vertical shifting:
\documentclass{article}
\usepackage{xparse}
\usepackage{tikz}
\usetikzlibrary{calc}
\DeclareDocumentCommand{\hcancel}{mO{0pt}O{0pt}O{0pt}O{0pt}}{%
\tikz[baseline=(tocancel.base)]{
\node[inner sep=0pt,outer sep=0pt] (tocancel) {#1};
\draw[red] ($(tocancel.south west)+(#2,#3)$) -- ($(tocancel.north east)+(#4,#5)$);
}%
}%
\begin{document}
\begin{equation}\label{eq:1}
\hcancel{$h_1 \land h_2 \land h_3 \land h_4 \land h_5 \land h_6 \land h_7 \land h_8 \land h_9 \land h_{10}$}
\end{equation}
\begin{equation}\label{eq:2}
\hcancel{$h_1 \land h_2 \land h_3 \land h_4 \land h_5 \land h_6 \land h_7 \land h_8 \land h_9 \land h_{10}$}[-3pt][3pt][3pt][-2pt]
\end{equation}
\end{document}
Package ulem
Timebandit had written a solution with package ulem. The example was given as LaTeX, but the package also works with plain TeX:
\input ulem.sty
\sout{Hello World}
\bye
Package soul
Another LaTeX package soul can be used with plain TeX:
\input soul.sty
\st{Hello World}
\bye
Best Answer
Use something like
or
And you can of course define a command for convenience.