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\documentclass[a4paper,12pt]{article}
\usepackage[iso,english]{isodate}
\usepackage[margin=1in]{geometry}
\usepackage[english]{babel}
\usepackage{parskip}
\usepackage[color]{tiscreen}
\usepackage{multicol}
\usepackage{hyperref}
\usepackage{array}
\usepackage{fancyvrb-ex}
\fvset{
	frame=single,
	label=\fbox{Source},
	framesep=4mm,
	numbers=left,
	fontsize=\footnotesize,
}

\newcommand{\LCDsymb}[1]{\large \textLCD{1}|{#1}~|}
\newcommand{\LCDcmd}{\texttt{\textbackslash LCD}}

\title{TI calculator display\\{\small(TI-82 STATS)}}
\author{Mustafa Ibrahim}

\begin{document}

\maketitle

\begin{center}
\tiscreen
|10^6*(4^7+1){rarrow}X  |
|       1.6385E10|
|{sqrt}(X)*X/10!      |
|     577971782.1|
|cos{ar}(cos(Ans))  |
|        62.11246|
|{fcur}               |
|                |
\end{center}

\tableofcontents\newpage

\section{Quickstart}

\begin{SideBySideExample}[xrightmargin=6cm]
%\usepackage[color]{tiscreen}

\tiscreen
|4+1             |
|               5|
|Ans{sq}         |
|              25|
|{fcur}          |
|                |
|                |
|                |
\end{SideBySideExample}

\section{Package option(s)}
\subsection{Color}

Using the \texttt{color} option will change the colors used by the \LCDcmd{}
command. The colors are defined as \texttt{tiscreenfg} (foreground. i.e. font
color) and \texttt{tiscreenbg} (background). These colors can be redefined like
this:

\begin{Verbatim}
% Add this to your preamble
\definecolor{tiscreenbg}{HTML}{5d9345}
\definecolor{tiscreenfg}{HTML}{FFFFFF}
\end{Verbatim}

\section{LCD size}

The default LCD size is $8 \times 16$ (the size of the TI-82 STATS). It can be
changed by redefining the variables used to determine the size of the display
or by using the original \LCDcmd{} command.

\begin{Verbatim}
% First method (For entire document)
\def\tiscreenX{16}
\def\tiscreenY{8}

% Second method (Only once)
\LCD{5}{11}
|ANOTHER  |
|EXAMPLE  |
|WITH A   |
|DIFFERENT|
|SIZE     |
\end{Verbatim}

\section{Additional defined characters} \LCDcolors{black}{white}
\begin{center}
	\begin{tabular}{|l|l|>{\ttfamily}l|}
		\multicolumn{3}{c}{\textbf{Added characters}} \\
		\hline
		Name       & Symbol          &\textnormal{\LCDcmd{} Code} \\
		\hline
		E          & \LCDsymb{sciE}  & \{sciE\} \\
		$\sigma$   & \LCDsymb{sigma} & \{sigma\} \\
		$x^2$      & \LCDsymb{sq}    & \{sq\} \\
		$x^{-1}$   & \LCDsymb{ar}    & \{ar\} \\
		$y^x$      & \LCDsymb{cx}    & \{cx\} \\
		$x_1$      & \LCDsymb{sub1}  & \{sub1\} \\
		$x_2$      & \LCDsymb{sub2}  & \{sub2\} \\
		$x_3$      & \LCDsymb{sub3}  & \{sub3\} \\
		$x_4$      & \LCDsymb{sub4}  & \{sub4\} \\
		$x_5$      & \LCDsymb{sub5}  & \{sub5\} \\
		$x_6$      & \LCDsymb{sub6}  & \{sub6\} \\
		$\bar x$   & \LCDsymb{barx}  & \{barx\} \\
		$\bar y$   & \LCDsymb{bary}  & \{bary\} \\
		\hline
		\multicolumn{3}{c}{\textbf{Redefined characters}} \\
		\hline
		!          & \LCDsymb{!}     & \{!\} \\
		\{         & \LCDsymb{lb}    & \{lb\} \\
		\}         & \LCDsymb{rb}    & \{rb\} \\
		$[$        & \LCDsymb{rb}    & \{rb\} \\
		$]$        & \LCDsymb{rb}    & \{rb\} \\
		$\sqrt{x}$ & \LCDsymb{sqrt}  & \{sqrt\} \\
		e          & \LCDsymb{e}     & e \\
		i          & \LCDsymb{i}     & i \\
		v          & \LCDsymb{v}     & v \\
		w          & \LCDsymb{w}     & w \\
		\hline
	\end{tabular}
\end{center}

\end{document}