How do I produce a conditional expression with large brackets?
For example:
X = 0 if a=1, 1 otherwise, with a large left bracket and specifying each condition in a line?
[Tex/LaTex] Large braces for specifying values of variables by condition
bracesconditionals
Related Solutions
Using the amsmath package, the proper solution would be to break the long definition using multline (or multline* for no equation number):
\begin{multline}
A = \{ (x, y, z) \colon \exists \dots \forall \dots \\
\text{(your big definition of a graph goes here)} \}
\end{multline}
If you insist on having large braces around the definition of your set you can use something like:
\begin{equation}
A = \left\{
\begin{aligned}
&(x, y, z) \colon \exists \dots \forall \dots \\
&\text{(your big definition of a graph goes here)}
\end{aligned}
\right\}
\end{equation}
You can use some extra space by \\[3pt] for first and second lines.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation*}
A=U\Lambda U^T=\left[\begin{array}{ccc}
& & \\[3pt]
u_1 & \cdots & u_n \\[3pt]
& &
\end{array}\right]\left[\begin{array}{ccc}
\lambda_1 & & \\
& \ddots & \\
& & \lambda_n
\end{array}\right]\left[\begin{array}{ccc}
& u_1^T & \\
& \vdots & \\
& u_n^T &
\end{array}\right],
\end{equation*}
\end{document}
Best Answer
The
casesenvironment from amsmath does the trick.