4

I'd love to achieve a nice format for the following snippet:

$$Z_{eq}(j\omega) = R_0 + \left(R_1 + \frac{1}{j\omega C_1}\right) || \left(R_2 + \frac{1}{j\omega C_2}\right)$$

If printed as such, the || bars aren't tall enough to get a nice result.

I've also tried this solution but it doesn't work either.

$$Z_{eq}(j\omega) = R_0 + \left(R_1 + \frac{1}{j\omega C_1}\right)\parallel \left(R_2 + \frac{1}{j\omega C_2}\right)$$

Thank you!

9

As @DavidCarlisle has already noted in a comment, you may want to replace \parallel with \Vert. Importantly, the symbol produced by \Vert can be enlarged vertically with the help of the \big, \Big, \bigg, and \Bigg prefixes: \big\Vert, \Big\Vert, \bigg\Vert, and \Bigg\Vert. Finally, in case you need a bit of extra spacing around the double vertical lines, you could use the additional prefix element m: \bigm\Vert, \Bigm\Vert, \biggm\Vert, and \Biggm\Vert.

enter image description here

\documentclass{article}
\usepackage{amsmath} % for 'split' environment
\begin{document}
\[ 
\begin{split}
Z_{\mathrm{eq}}(j\omega) 
&= R_0 + \biggl(R_1 + \frac{1}{j\omega C_1}\biggr) 
   \bigg\Vert \biggl(R_2 + \frac{1}{j\omega C_2}\biggr)\\[1ex]
&= R_0 + \biggl(R_1 + \frac{1}{j\omega C_1}\biggr) 
   \biggm\Vert \biggl(R_2 + \frac{1}{j\omega C_2}\biggr)
\end{split} 
\]
\end{document}
|improve this answer|||||
  • 3
    I believe this is a case for equation and split rather than align. – egreg Feb 16 at 17:26
  • @egreg - Good idea. Done. – Mico Feb 16 at 18:30

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