How to label each equation in align environment?
- by Tim
Hi,
I wonder how to label each equation in align environment? For example
\begin{align} \label{eq:lnnonspbb}
\lambda_i + \mu_i = 0 \\
\mu_i \xi_i = 0 \\
\lambda_i [y_i( w^T x_i + b) - 1 + \xi_i] = 0
\end{align}
only label the first equation and only the first equation can be referred later.
Thanks and regards!