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I have a problem about space text in math mode , and i have minimal working anwers like this following from Microsoft Word : with space in Microsoft Word

But, since i use LaTeX dont space text in math mode, like this following from LaTeX result : not space in LaTeX result

How give space text math mode in LaTeX ? I use code LaTeX like this

\begin{tabular}{lll}

$Biaya total_{kincir angin}$&=&40 $\times$ Rp 60.000.000,00\\
                          &=&  Rp 2.400.000.000,00
\end{tabular}

and

 \begin{tabular}{lll}

$Biaya total_{kincir angin}$&=& 3000 $\times$ Rp 5.000.000,00\\
                            &=& Rp 15.000.000.000,00
\end{tabular}
4
  • Checkout the section on math mode spacing: crab.rutgers.edu/~karel/latex/class5/class5.html
    – rickhg12hs
    Commented Jun 18, 2013 at 7:23
  • Oke, successfull, @rickhg12hs thank
    – Hirwanto
    Commented Jun 18, 2013 at 7:27
  • Down-voted, because a simple search on Google using a combination of “LaTeX”, “math”, and “spacing” (or alternatively “text”) generates answers to the OPs question in the first 10 hits. Furthermore, if you want to write out actual words n math mode, use \text{}.
    – mSSM
    Commented Jun 18, 2013 at 7:44
  • 1
    Ok, @mSSM , thank for your vote , sorry , i'm a beginner in LaTeX
    – Hirwanto
    Commented Jun 18, 2013 at 7:50

2 Answers 2

1
\documentclass[preview,border=12pt]{standalone}% change it back to your own document class
\usepackage{amsmath}
\usepackage[
    group-separator=.,
    output-decimal-marker={,},
]{siunitx}

\def\dummy{%
Karl's students do not care about dashing patterns. 
Karl's students do not care about arrow tips. 
Karl's students, by the way, do not know what a transformation matrix is.}

\begin{document}
\dummy
\begin{align*}
\text{Biaya Total}_{\,\text{kincir angin}}
    &= 40 \times \SI{60000000.00}[Rp\,]{}\\
    &= \SI{2400000000.00}[Rp\,]{}
\end{align*}
\dummy
\end{document}

enter image description here

Remarks:

  • always specify your decimal numbers with a period as the decimal marker.
  • always use siunit when specifying numbers such that you can change the setting globally.
  • group-separator=. makes the input 123456 get rendered as 123.456.
  • output-decimal-marker={,} makes the input 12.23 get rendered as 12,45.
  • Combining both group-separator=.,output-decimam-marker={,} makes the input 123456.78 get rendered as 123.456,78.
  • use align* to vertically align the =s and to remove the equation numbers.
  • use \text in math mode to make texts get rendered as normal texts.
10

The math italic font is not designed to make multi-letter words, the letters are widely spaced to producing spacing fro individual identifiers. Use

\textit{Biaya total}_{\textit{kincir angin}}

Together with the amsmath package so that the \text... commands produce smaller fonts

1
  • Thank your for all your answer and i have the result and succesfull from rickhg12hs and user32411 , and thank for Mr David for more completely your Anwers.
    – Hirwanto
    Commented Jun 19, 2013 at 9:20

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