I want to recreate an equation, and I am not sure how to go about it. The features I'm interested in are the double row bracket and the aligned >> and << on the Right.
1 Answer
The simplest possible solution is using the cases environment from the amsmath package.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation*}
\lambda_{Np} = \lambda_p
\begin{cases}
1 + 3 (E_{\mathrm{max}} / E_0)^2 / 16, & E_{\mathrm{max}} / E_0 \ll 1 \\
(2 / \pi) (E_{\mathrm{max}} / E_0 + E_0 / E_{\mathrm{max}}), & E_{\mathrm{max}} / E_0 \gg 1, \\
\end{cases}
\end{equation*}
\end{document}
For more complex needs you can have a look at the alignedat environment (also from amsamth) together with half-open delimiters but in the situation at hand there is not really a need for it.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation*}
\lambda_{Np} = \lambda_p
\left\{
\begin{alignedat}{2}
&1 + 3 (E_{\mathrm{max}} / E_0)^2 / 16, & \quad E_{\mathrm{max}} / E_0 &\ll 1 \\
&(2 / \pi) (E_{\mathrm{max}} / E_0 + E_0 / E_{\mathrm{max}}), & E_{\mathrm{max}} / E_0 &\gg 1, \\
\end{alignedat}
\right.
\end{equation*}
\end{document}
The output is pretty much that same as above.
answered Oct 2, 2022 at 10:16
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@Zarko I highly doubt that this is supposed to be the
\maxoperator. Oct 2, 2022 at 12:06
casesenvironment fromamsmath. As for aligning the right-hand side, since the material preceding the greater/less operators is the same in both lines, no special coding is required.