diff --git a/README.md b/README.md
index ed1e515..46e5783 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # Math
+
 考研数学，包括高等数学、线性代数、概率统计
 
 参考教材：
diff --git a/perpare/perpare.md b/perpare/perpare.md
index 2e3406f..b8a163d 100644
--- a/perpare/perpare.md
+++ b/perpare/perpare.md
@@ -84,4 +84,3 @@
 + $\ln(x+\sqrt{x^2-1})$：反双曲余弦。
 
 + 见到$\sqrt{u}$，$\sqrt[3]{u}$，用u即可研究最值。
-
diff --git a/perpare/perpare.tex b/perpare/perpare.tex
index 4e23d3b..21dd877 100644
--- a/perpare/perpare.tex
+++ b/perpare/perpare.tex
@@ -1,15 +1,58 @@
 \documentclass[UTF8]{ctexart}
+\usepackage{indentfirst}
+\setlength{\parindent}{2.45em}
+\usepackage{setspace}
+\onehalfspacing
 \author{Didnelpsun}
 \title{考研数学准备}
 \begin{document}
 \maketitle
+\thispagestyle{empty}
 \tableofcontents
-\section{你好中国}
-    金健行
-\subsection{Hello Beijing}
-\subsection{Hello Beijing}
-\subsubsection{Hello Beijing}
-\paragraph{Tian'anmen Square}
-\subparagraph{Chairman Mao}
-\section{你好中国}
+\thispagestyle{empty}
+\newpage
+\pagestyle{plain}
+\setcounter{page}{1}
+\section{函数的概念与特性}
+\subsection{函数}
+\subsection{反函数}
+\subsection{复合函数}
+\subsection{有界性}
+\subsection{单调性}
+\subsection{奇偶性}
+\subsection{周期性}
+\section{函数的图像}
+\subsection{直角坐标系图像}
+\subsubsection{常见图像}
+1. 基本初等函数与初等函数
+
+2.分段函数
+\subsubsection{图像变换}
+1.平移变换
+
+2.堆成变换
+
+3.伸缩变换
+\subsection{极坐标系图像}
+\subsubsection{描点法}
+1.心形线（外摆线）
+
+2.玫瑰线
+
+3.阿基米德螺线
+
+4.伯努利双扭线
+\subsubsection{直角坐标系下画极坐标图像}
+\subsection{参数法}
+\subsubsection{摆线（平摆线）}
+\subsubsection{星形线（内摆线）}
+\section{常用基础知识}
+\subsection{数列}
+\subsection{三角函数}
+\subsection{指数运算法则}
+\subsection{对数运算法则}
+\subsection{一元二次方程基础}
+\subsection{因式分解公式}
+\subsection{阶乘与双阶乘}
+\subsection{常用不等式}
 \end{document}