我正在写一些代数笔记,但不幸的是,我在排列某些方程式时遇到了一些问题:方程式恰好排列在右边,而我希望它们排列在左边,就像这幅图显示的那样,它是一篇以文档格式写的论文。
因此我编写了这段代码,希望能够获得如上图所示的文本。
\documentclass{article}
\usepackage{titlesec}
\usepackage{mathrsfs}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage[flneq]{amsmath}
\usepackage{txfonts}
\usepackage{layout}
\usepackage[paperheight=29.7cm,paperwidth=21cm,textwidth=17cm,textheight=25 cm]{geometry}
\linespread{1.5}
\setcounter{equation}{-1}
\newtheorem{lemma}{Lemma}
\setcounter{lemma}{-1}
\newtheorem{proposition}{Proposizione}
\setcounter{proposition}{-1}
\newtheorem{corollary}{Corollario}
\setcounter{corollary}{-1}
\newtheorem{theorem}{Teorema}
\setcounter{theorem}{-1}
\begin{document}
\begin{align*}
x_{i\big(\sigma(0)\big)}\bot\dots\bot x_{i\big(\sigma(m)\big)}\bot x_{i\big(\sigma(m+1)\big)}=\\
x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(0)\big)\Big)}\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(1)\big)\Big)}\bot\dots\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m)\big)\Big)}\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m+1)\big)\Big)}=\\
x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(0)\big)\Big)}\bot\biggl(x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(1)\big)\Big)}\bot\dots\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m)\big)\Big)}\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m+1)\big)\Big)}\biggl)=\\
x_{i\big(\varphi_\sigma^{m+1}(0)\big)}\bot\biggl(x_{i\big(\varphi_\sigma^{m+1}(1)\big)}\bot\dots\bot x_{i\big(\varphi_\sigma^{m+1}(m)\big)}\bot x_{i\big(\varphi_\sigma^{m+1}(m+1)\big)}\biggl)=\\
\biggl(x_{i\big(\varphi_\sigma^{m+1}(0)\big)}\bot x_{i\big(\varphi_\sigma^{m+1}(1)\big)}\bot\dots\bot x_{i\big(\varphi_\sigma^{m+1}(m)\big)}\biggl)\bot x_{i\big(\varphi_\sigma^{m+1}(m+1)\big)}=\\
(x_{i(0)}\bot x_{i(1)}\bot\dots\bot x_{i(m)})\bot x_{i(m+1)}=\\
x_{i(0)}\bot\dots\bot x_{i(m)}\bot x_{i(m+1)}
\end{align*}
\end{document}
但不幸的是输出只是这样
这确实不同。那么,如何获取第一张图片中的文本?我指出我已证明可以使用\flalign
命令,但它不起作用。
答案1
您可以使用这种结构:
\[ \begin{aligned}
& x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(0)\big)\Big)}\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(1)\big)\Big)}\bot\dots\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m)\big)\Big)}\bot x_{i\Big(\psi_\sigma^{m+1}\big(\varphi_\sigma^{m+1}(m+1)\big)\Big)}=\\
& x_{i\big(\sigma(0)\big)}\bot\dots\bot x_{i\big(\sigma(m)\big)}\bot x_{i\big(\sigma(m+1)\big)}=\\
\end{aligned} \]
这使
该&
符号定义了左侧的对齐方式。