如何在对齐环境中标记每个方程? [英] How to label each equation in align environment?

问题描述

我想知道如何在 align 环境中标记每个方程?例如

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} 

只标注第一个方程，以后只能引用第一个方程.

only label the first equation and only the first equation can be referred later.

推荐答案

您可以单独标记每一行，在您的情况下:

You can label each line separately, in your case:

\begin{align}
  \lambda_i + \mu_i = 0 \label{eq:1}\\
  \mu_i \xi_i = 0 \label{eq:2}\\
  \lambda_i [y_i( w^T x_i + b) - 1 + \xi_i] = 0 \label{eq:3}
\end{align} 

请注意，这仅适用于为多个方程(而不是多行单方程)设计的 AMS 环境.

Note that this only works for AMS environments that are designed for multiple equations (as opposed to multiline single equations).

这篇关于如何在对齐环境中标记每个方程?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！