diff --git a/advanced-math/knowledge/4-indefinite-integral-and-definite-integral/indefinite-integral-and-definite-integral.tex b/advanced-math/knowledge/4-indefinite-integral-and-definite-integral/indefinite-integral-and-definite-integral.tex
new file mode 100644
index 0000000..a54ae48
--- /dev/null
+++ b/advanced-math/knowledge/4-indefinite-integral-and-definite-integral/indefinite-integral-and-definite-integral.tex
@@ -0,0 +1,32 @@
+\documentclass[UTF8, 12pt]{ctexart}
+% UTF8编码，ctexart现实中文
+\usepackage{color}
+% 使用颜色
+\usepackage{geometry}
+\setcounter{tocdepth}{4}
+\setcounter{secnumdepth}{4}
+% 设置四级目录与标题
+\geometry{papersize={21cm,29.7cm}}
+% 默认大小为A4
+\geometry{left=3.18cm,right=3.18cm,top=2.54cm,bottom=2.54cm}
+% 默认页边距为1英尺与1.25英尺
+\usepackage{indentfirst}
+\setlength{\parindent}{2.45em}
+% 首行缩进2个中文字符
+\usepackage{setspace}
+\renewcommand{\baselinestretch}{1.5}
+% 1.5倍行距
+\author{Didnelpsun}
+\title{标题}
+\date{}
+\begin{document}
+\maketitle
+\pagestyle{empty}
+\thispagestyle{empty}
+\tableofcontents
+\thispagestyle{empty}
+\newpage
+\pagestyle{plain}
+\setcounter{page}{1}
+\section{}
+\end{document}
diff --git a/advanced-math/knowledge/5-differential-equation/differential-equation.tex b/advanced-math/knowledge/5-differential-equation/differential-equation.tex
new file mode 100644
index 0000000..a54ae48
--- /dev/null
+++ b/advanced-math/knowledge/5-differential-equation/differential-equation.tex
@@ -0,0 +1,32 @@
+\documentclass[UTF8, 12pt]{ctexart}
+% UTF8编码，ctexart现实中文
+\usepackage{color}
+% 使用颜色
+\usepackage{geometry}
+\setcounter{tocdepth}{4}
+\setcounter{secnumdepth}{4}
+% 设置四级目录与标题
+\geometry{papersize={21cm,29.7cm}}
+% 默认大小为A4
+\geometry{left=3.18cm,right=3.18cm,top=2.54cm,bottom=2.54cm}
+% 默认页边距为1英尺与1.25英尺
+\usepackage{indentfirst}
+\setlength{\parindent}{2.45em}
+% 首行缩进2个中文字符
+\usepackage{setspace}
+\renewcommand{\baselinestretch}{1.5}
+% 1.5倍行距
+\author{Didnelpsun}
+\title{标题}
+\date{}
+\begin{document}
+\maketitle
+\pagestyle{empty}
+\thispagestyle{empty}
+\tableofcontents
+\thispagestyle{empty}
+\newpage
+\pagestyle{plain}
+\setcounter{page}{1}
+\section{}
+\end{document}