pagesetup.sty

\usepackage{amsfonts,graphicx}
\usepackage{amsfonts,latexsym,amsthm,amssymb,amsmath,euscript}
\usepackage{mathrsfs,manfnt,enumitem,stmaryrd}
\usepackage[colorlinks=true,linkcolor=blue,urlcolor=blue]{hyperref}

% since we're using the custom \lecture definition, we want to recenter around that
\setcounter{tocdepth}{1}
\newcounter{lecnum}
\renewcommand{\thesubsection}{\thelecnum.\arabic{subsection}}
\renewcommand{\theequation}{\thelecnum.\arabic{equation}}
\renewcommand{\thefigure}{\thelecnum.\arabic{figure}}
\renewcommand{\thetable}{\thelecnum.\arabic{table}}

% the following macro is used to generate the header.
\newcommand{\lecture}[5]{
   \addcontentsline{toc}{section}{#5}
   \thispagestyle{plain}
   \newpage
   \setcounter{lecnum}{#1}
   \noindent
   \begin{center}
   \framebox{
      \vbox{\vspace{2mm}
    \hbox to 6.28in { {\bf CS281: Advanced ML
  \hfill #2, 2017} }
       \vspace{4mm}
       \hbox to 6.28in { {\Large \hfill Lecture #1: #5  \hfill} }
       \vspace{2mm}
       \hbox to 6.28in { {\it Lecturer: #3 \hfill Scribes: #4} }
      \vspace{2mm}}
   }
   \end{center}
   \markboth{Lecture #1: #5}{Lecture #1: #5}
}

%Use this command for a figure; it puts a figure in wherever you want it.
%usage: \fig{NUMBER}{SPACE-IN-INCHES}{CAPTION}
\newcommand{\fig}[3]{
			\vspace{#2}
			\begin{center}
			Figure \thelecnum.#1:~#3
			\end{center}
	}

\usepackage{amsfonts,latexsym,amsthm,amssymb,amsmath,euscript}
\usepackage{mathrsfs,manfnt,enumitem,stmaryrd}
\usepackage{graphics}
\usepackage{placeins}
\usepackage{tikz}
\usetikzlibrary{calc, arrows.meta, positioning}


% Use these for theorems, lemmas, proofs, etc.
\newtheorem{proposition}{Proposition}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{conjecture}[theorem]{Conjecture}
\newtheorem{postulate}[theorem]{Postulate}
\theoremstyle{definition}
\newtheorem{example}[theorem]{Example}

\theoremstyle{remark}
\newtheorem*{remark}{Remark}
\newtheorem*{notation}{Notation}
\newtheorem*{note}{Note}

%
% Put custom commands for lectures here
%
\newcommand{\E}{\mathbb{E}}
\newcommand{\R}{\mathbb{R}}
\newcommand{\cov}{\text{cov}}
\renewcommand{\v}[1]{\boldsymbol{#1}}
\newcommand{\on}{\operatorname}
\newcommand{\N}{\mathcal{N}}
% \newcommand{\exp}{\on{exp}}