# increase space between brace and equation

Using the package mathtools the output of this code

$\begin{dcases*} l_{\epsilon} = (l_ul_d)^{1/2}\\ l_k = min(l_u,l_k) \end{dcases*}$

is the following

Is there a way to increase the space between the brace and the equations?

• Off-topic: Do please write \min rather than just min.
– Mico
Jun 21, 2016 at 9:44

If you want to increase spacing for all dcases environments, you can use the \renewcases command from mathtools. Here is an extremist example:

\documentclass{article}
\usepackage{mathtools}
\makeatletter
\renewcases{dcases}{\,}{%
$\m@th\displaystyle{##}$\hfil}{$\m@th\displaystyle{##}$\hfil}{\lbrace\qquad}{.}
\makeatother

\begin{document}

$\frac{\partial f(x)}{\partial L_1} = \begin{dcases} \frac{1}{\rho } - 1, \quad & x<L_1 \\ 0, \quad & \text{otherwise.} \end{dcases}$

\end{document}

I realised while writing the question that these could be two options:

$\begin{dcases*} \quad l_{\epsilon} = (l_ul_d)^{1/2}\\ ~ l_k = min(l_u,l_k) \end{dcases*}$