[Tex/LaTex] Overline in text mode, Background Color

colormath-mode

I've got the following code below to mimic a TI83 Calculator screen, but I'm stuck on adding a couple of things I'd like to add.

I'd like to make the \overline{x} in text mode. I tried \={x}, and although that works in LaTeX, it doesn't work on our system. Any other ideas on how I can produce an overline over x in text mode?
I'd also like to try to take this:
```
 \def\input{\calcinput{\ Inpt:Data\ Stats}}
```
and put the word Stats in the color white with a solid black background behind it.

Any thoughts?

\documentclass[11pt]{scrartcl} 
\usepackage{tikz}
\usepackage{xparse}
\newcommand\tsurd{\ensuremath{\sqrt{\phantom{i}}}}
\newcommand\txbar{\ensuremath{\overline{x}}}
\ExplSyntaxOn
\NewDocumentCommand{\calcinput}{m}
{
 \tl_map_inline:nn { #1 } { ##1 \hspace{0pt} }
}
\ExplSyntaxOff

\begin{document}

\def\tinterval{\calcinput{TInterval}}
\def\input{\calcinput{\ Inpt:Data\ Stats}}
\def\xbar{\calcinput{\ \txbar:10}}
\def\s{\calcinput{\ Sx:2.345678}}
\def\n{\calcinput{\ n:12}}
\def\cl{\calcinput{\ C-Level:0.95}}
\def\calc{\calcinput{\ Calculate}}


\begin{center}
\begin{tikzpicture}[font=\large\ttfamily]
\draw (0,0) rectangle (5,-4);
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (tinterval) {\tinterval};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (input) at (tinterval.south west) {\input};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (xbar) at (input.south west) {\xbar};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (s) at (xbar.south west) {\s};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (n) at (s.south west) {\n};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (cl) at (n.south west) {\cl};
\node[align=flush left,text width =5cm,
     anchor=north west,inner sep=1pt] (calc) at (cl.south west) {\calc};
\end{tikzpicture}
\end{center}
\end{document}

Best Answer

You can use \text{x} from the amsmath package to typeset the x in text mode, and \colorbox{black}{\textcolor{white}{Stats}} to obtain the white text, with a black background:

enter image description here

Notes:

I would recommend you not use \input as a macro name. That is a predefined LaTeX macro. So to minimize those kinds of errors I would recommend you use LaTeX's \newcommand rather than TeX's \def. I have updated the MWE below to reflect this.

Also, if you use \tikzset to define a style as:

\tikzset{My Node Style/.style={
   align=flush left,text width =5cm, anchor=north west,inner sep=1pt}
}

you can greatly simplify your code as I have done below.

Code:

\documentclass[11pt]{scrartcl} 
\usepackage{tikz}
\usepackage{xparse}
\usepackage{xcolor}
\usepackage{amsmath}

\newcommand\tsurd{\ensuremath{\sqrt{\phantom{i}}}}
\newcommand\txbar{\ensuremath{\overline{\text{x}}}}
\ExplSyntaxOn
\NewDocumentCommand{\calcinput}{m}
{
 \tl_map_inline:nn { #1 } { ##1 \hspace{0pt} }
}
\ExplSyntaxOff

\begin{document}

\newcommand*{\tinterval}{\calcinput{TInterval}}
\newcommand*{\Inpt}{\calcinput{\ Inpt:Data\ {\colorbox{black}{\textcolor{white}{Stats}}}}}

\newcommand*{\InptData}{\calcinput{\ Inpt:Data\ }}
\newcommand*{\Stat}{\calcinput{Stats}}

\newcommand*{\xbar}{\calcinput{\ \txbar:10}}
\newcommand*{\s}{\calcinput{\ Sx:2.345678}}
\newcommand*{\n}{\calcinput{\ n:12}}
\newcommand*{\cl}{\calcinput{\ C-Level:0.95}}
\newcommand*{\calc}{\calcinput{\ Calculate}}

\tikzset{My Node Style/.style={
    align=flush left,text width =5cm,
    anchor=north west,inner sep=1pt}
}

\begin{center}
\begin{tikzpicture}[font=\large\ttfamily]
    \fboxsep=0.5pt
    \coordinate (Origin) at (0,0);
    \draw (Origin) rectangle (5,-4);
    \node[My Node Style] (tinterval) at (Origin)               {\tinterval};
    \node[My Node Style] (Inpt)      at (tinterval.south west) {\Inpt};
    \node[My Node Style] (xbar)      at (Inpt.south west)      {\xbar};
    \node[My Node Style] (s)         at (xbar.south west)      {\s};
    \node[My Node Style] (n)         at (s.south west)         {\n};
    \node[My Node Style] (cl)        at (n.south west)         {\cl};
    \node[My Node Style] (calc)      at (cl.south west)        {\calc};
\end{tikzpicture}
\end{center}
\end{document}

Related Solutions

[Tex/LaTex] \overline outside of math mode

Easy answer:

\newcommand{\textoverline}[1]{$\overline{\mbox{#1}}$}

Not so easy, but neater:

\makeatletter
\newcommand*{\textoverline}[1]{$\overline{\hbox{#1}}\m@th$}
\makeatother

We use the normal \overline of math mode, exploiting the fact that a \hbox in math mode typesets its argument in the font which was current at the time the math formula starts (also keeping spaces).

The strange \m@th is a precaution against possible setting of the parameter \mathsurround, a space added before and after in-line math formulas; it's usually zero, but a class might change it. When math mode is used for things like this, it's best to be on the safe side: \m@th sets the parameter to zero, but since a math formula forms a group, the setting is local and won't change the global one.

[Tex/LaTex] LaTeX color setting for math mode

With no warranty of any kind!

\documentclass{article}
\usepackage{color}


\makeatletter
\def\colorizemath #1#2{%
    \expandafter\mathchardef\csname orig:math:#1\endcsname\mathcode`#1
    \mathcode`#1="8000
    \toks@\expandafter{\csname orig:math:#1\endcsname}%
    \begingroup
       \lccode`~=`#1
       \lowercase{%
    \endgroup
       \edef~{{\noexpand\color{#2}\the\toks@}}}%
   }
\@for\@tempa:=a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z\do{%
    \expandafter\colorizemath\@tempa{green}}
\@for\@tempa:=A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z\do{%
    \expandafter\colorizemath\@tempa{green}}
\@for\@tempa:=0,1,2,3,4,5,6,7,8,9\do{%
    \expandafter\colorizemath\@tempa{red}}
\makeatother

\everymath{\color{blue}}
\everydisplay{\color{blue}}

\begin{document}\thispagestyle{empty}

Hello $world$. Do you know that $E=mc^2$? 

\[ \widehat f(\omega) = \int_{-\infty}^\infty f(x) e^{-2\pi i \omega x}\,dx\]

\[ (I - M)^{-1} = \sum_{k=0}^\infty M^k\]
\end{document}

colorized math

Let me add, with regards to \everymath and \everydisplay that it would have been better to do:

\everymath\expandafter{\the\everymath \color{blue}}
\everydisplay\expandafter{\the\everydisplay \color{blue}}

This preserves, rather than erases, the previously stored data in these token lists. (I just checked and Lamport's book does not have a single mention of token list, and even the word token is not to be found (it seems) in the entire book...). Admittedly, packages who put things in them should do that At Begin Document so even the brutal way used in my initial code, as long as it is in the preamble, is maybe not that destructive. People interested in token lists can learn about it in, for example, TeX by Topic by Victor Eijkhout (texdoc topic).