-#LyX 2.0.0svn created this file. For more info see http://www.lyx.org/
-\lyxformat 404
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
+\lyxformat 413
\begin_document
\begin_header
\textclass book
%\XeTeXlinebreaklocale "zh"
%\XeTeXlinebreakskip = 0pt plus 1pt
\usepackage{CJK}
-
-% redefine the \LyX macro for PDF bookmarks
-\def\LyX{\texorpdfstring{%
- L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\@}
- {LyX}}
\end_preamble
\options cjk
\use_default_options true
\maintain_unincluded_children false
\language chinese-simplified
+\language_package default
\inputencoding UTF8
\fontencoding global
\font_roman default
\font_sans default
\font_typewriter default
\font_default_family default
-\use_xetex false
+\use_non_tex_fonts false
\font_sc false
\font_osf false
\font_sf_scale 100
\tracking_changes false
\output_changes false
\html_math_output 0
+\html_css_as_file 0
\html_be_strict false
\end_header
\begin_layout Standard
觉得麻烦的话也可以直接用键盘输入括号,不过这样输入的括号和常规文本一样都是固定大小的。如果括号中有大个的分式或矩阵的话,公式就会很难看,看了下边的公式你就明白了
。
-\begin_inset Formula \[
-(\frac{\frac{1}{2}}{\frac{2}{\frac{1}{3}}+\sqrt{2}})=\left(\frac{\frac{1}{2}}{\frac{2}{\frac{1}{3}}+\sqrt{2}}\right)\]
+\begin_inset Formula
+\[
+(\frac{\frac{1}{2}}{\frac{2}{\frac{1}{3}}+\sqrt{2}})=\left(\frac{\frac{1}{2}}{\frac{2}{\frac{1}{3}}+\sqrt{2}}\right)
+\]
\end_inset
\end_inset
:
-\begin_inset Formula \[
+\begin_inset Formula
+\[
f(x)=\left\{ \begin{array}{cc}
\log_{8}x & x>0\\
0 & x=0\\
\sum_{i=1}^{5}\alpha_{i}+\sqrt{-\frac{1}{x}} & x<0
-\end{array}\right.\]
+\end{array}\right.
+\]
\end_inset