%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LaTeX Example: Project Report%% Source: http://www.howtotex.com%% Feel free to distribute this example, but please keep the referral% to howtotex.com% Date: March 2011%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% How to use writeLaTeX:%% You edit the source code here on the left, and the preview on the% right shows you the result within a few seconds.%% Bookmark this page and share the URL with your co-authors. They can% edit at the same time!%% You can upload figures, bibliographies, custom classes and% styles using the files menu.%% If you're new to LaTeX, the wikibook is a great place to start:% http://en.wikibooks.org/wiki/LaTeX%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Edit the title below to update the display in My Documents%\title{Project Report}%%%% Preamble\documentclass[paper=a4, fontsize=11pt]{scrartcl}\usepackage[T1]{fontenc}\usepackage{fourier}\usepackage{setspace}\usepackage[english]{babel}															% English language/hyphenation\usepackage[protrusion=true,expansion=true]{microtype}	\usepackage{amsmath,amsfonts,amsthm} % Math packages\usepackage[pdftex]{graphicx}	\usepackage{url}%%% Custom sectioning\usepackage{sectsty}\allsectionsfont{\centering \normalfont\scshape}%%% Custom headers/footers (fancyhdr package)\usepackage{fancyhdr}\pagestyle{fancyplain}\fancyhead{}											% No page header\fancyfoot[L]{}											% Empty\fancyfoot[C]{}											% Empty\fancyfoot[R]{\thepage}									% Pagenumbering\renewcommand{\headrulewidth}{0pt}			% Remove header underlines\renewcommand{\footrulewidth}{0pt}				% Remove footer underlines\setlength{\headheight}{13.6pt}%%% Equation and float numbering\numberwithin{equation}{section}		% Equationnumbering: section.eq#\numberwithin{figure}{section}			% Figurenumbering: section.fig#\numberwithin{table}{section}				% Tablenumbering: section.tab#%%% Maketitle metadata\newcommand{\horrule}[1]{\rule{\linewidth}{#1}} 	% Horizontal rule\title{		%\vspace{-1in} 			\usefont{OT1}{bch}{b}{n}		\normalfont \normalsize \textsc{University of Chinese Academy of Sciences, Math Department, Autumn 2017} \\        %Grade (entered by Greg Lau): pts/40 pts} \\ [25pt]		\horrule{0.5pt} \\[0.4cm]		\huge Operating System Weekly Homework 03 \\        %and 53;(Ch. 4)2,6,14,15 \\		\horrule{2pt} \\[0.5cm]}\author{		\normalfont 								\normalsize        Xinze Li, Student ID 2015K8009906024\\[-3pt]		\normalsize        %February 19, 2014}\date{}%%% Begin document\begin{document}\maketitle%\begin{section}\section{Problem 1}\subsection{description}\subsection{solution}\iffalse\begin{equation}\left\{\begin{array}{l}X\ 3\ 5\ 6\ 9\ (X\leq 3)\\3\ X\ 5\ 6\ 9\ (3 < X\leq 5) \\3\ 5\ X\ 6\ 9\ (5< X\leq 6)\\3\ 5\ 6\ X\ 9\ (6

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