1

in my MWE below, I wanted to know if it is possible to make the "{ }" larger like this (while still using the fourier package):

enter image description here

Here is my code:

\documentclass{article}
\usepackage{fourier}
\usepackage{amsmath,amsfonts,amssymb,amsthm,bm}
\usepackage{arydshln}
\usepackage{physics}

\begin{document}

\begin{equation}
1 \leq \mathbf{E}\{\tilde{\theta}^{2}(k)\}\mathbf{E}\Bigg\{\left[\pdv{}{\theta}\ln p(\mathbf{Z})\right]^{2}\Bigg\}
\end{equation}

\end{document}
2
  • 1
    same as always \left\{...\right\} should make automatically stretching or \bigl\{..\bigr\} or \Bigl\{ etc fixed size brackets Oct 9 '15 at 15:31
  • 1
    Use \left and \right instead of \Bigg; note also that you should use \bigl and \bigr (and similarly for the other sizes), not just \big \Big \bigg \Bigg.
    – egreg
    Oct 9 '15 at 15:32
2

I assume you want to enlarge both pairs of curly braces. I suggest you try \bigl\{ ... \bigr\} for the first pair, and \left\{ ... \right\} for the second pair.

enter image description here

\documentclass{article}
\usepackage{amsmath,fourier,physics}
\DeclareMathOperator{\E}{\mathbf{E}}

\begin{document}
\begin{equation}
1 \leq \E\bigl\{\tilde{\theta}^{2}(k)\bigr\}
       \E\left\{\Biggl[ \pdv{}{\theta}
          \ln p(\mathbf{Z}) \Biggr]^{2}\right\}
\end{equation}
\end{document}
2
  • @Micro, Thank you for your solution. What exactly made the "{ }" behave differently in your solution?
    – Joe
    Oct 9 '15 at 18:45
  • 1
    @Joe - I exchanged the ordering of the sizing instructions -- \Biggl[ and \Biggr] for the inner pair of large fences, and \left\{ and \right\} for the outer pair.
    – Mico
    Oct 9 '15 at 18:48

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