LaTeX forum ⇒ Math & ScienceFraction without Bar Topic is solved

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andremelzi
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Joined: Wed Aug 24, 2011 7:59 pm

Fraction without Bar

Postby andremelzi » Wed Aug 24, 2011 8:06 pm

Hi. How can I write a fraction without the bar? Like this:
helmholtz.png
helmholtz.png (3.99 KiB) Viewed 7553 times


Thanks!
Last edited by andremelzi on Wed Aug 24, 2011 9:37 pm, edited 2 times in total.

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localghost
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Postby localghost » Wed Aug 24, 2011 8:44 pm

The amsmath package provides the \genfrac command which allows to create your own fractional structures. So you can build an own fraction very easy.
  1. \documentclass[11pt]{article}
  2. \usepackage[T1]{fontenc}
  3. \usepackage{mathtools} % loads »amsmath«
  4.  
  5. \newcommand*{\bfrac}[2]{\genfrac{\lbrace}{\rbrace}{0pt}{}{#1}{#2}}
  6.  
  7. \begin{document}
  8. \[
  9. \left(\nabla^2+n^2(x)\,k^2\right)\bfrac{E}{K}=0
  10. \]
  11. \end{document}

The package manual has the details. For instant access open a command line.
  1. texdoc amsmath

Your example has probably been done with an array environment enclosed by curly braces. For more about math typesetting refer to the excellent »Math mode« document.


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andremelzi
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Postby andremelzi » Wed Aug 24, 2011 9:23 pm

Thank you!
Best regards,

André

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