LaTex package for creating beautiful homework.

homework.sty

\NeedsTeXFormat{LaTeX2e}[]
\ProvidesPackage{homework}[2017/03/07 Homework]

\RequirePackage{amsmath}
\RequirePackage{extramarks}
\RequirePackage{stackengine}

%% 'sans serif' option
\DeclareOption{sans}{
  \renewcommand{\familydefault}{\sfdefault}
}

%% 'roman' option
\DeclareOption{roman}{
  \renewcommand{\familydefault}{\rmdefault}
}

%% Global indentation option
\newif\if@neverindent\@neverindentfalse
\DeclareOption{neverindent}{
  \@neverindenttrue
}

\ExecuteOptions{roman}

\ProcessOptions\relax

%
% Create Problem Sections
%
\newcommand{\enterProblemHeader}[1]{
    \nobreak\extramarks{}{Problem \arabic{#1} continued on next page\ldots}\nobreak{}
    \nobreak\extramarks{Problem \arabic{#1} (continued)}{Problem \arabic{#1} continued on next page\ldots}\nobreak{}
}

\newcommand{\exitProblemHeader}[1]{
    \nobreak\extramarks{Problem \arabic{#1} (continued)}{Problem \arabic{#1} continued on next page\ldots}\nobreak{}
    \stepcounter{#1}
    \nobreak\extramarks{Problem \arabic{#1}}{}\nobreak{}
}

\setcounter{secnumdepth}{0}
\newcounter{hmwkProblemCounter}
\setcounter{hmwkProblemCounter}{1}
\nobreak\extramarks{Problem \arabic{hmwkProblemCounter}}{}\nobreak{}

% Homework Problem Environment
%
% This environment takes an optional argument. When given, it will adjust the
% problem counter. This is useful for when the problems given for your
% assignment aren't sequential. See the last 3 problems of this template for an
% example.
%
\newenvironment{hmwkProblem}[1][-1]{
    \ifnum#1>0
        \setcounter{hmwkProblemCounter}{#1}
    \fi
    \subsection{Problem \arabic{hmwkProblemCounter}}
    \enterProblemHeader{hmwkProblemCounter}
}{
    \exitProblemHeader{hmwkProblemCounter}
}

% Aliases
\newcommand{\hmwkApproach}{\subsubsection*{Approach}}
\newcommand{\hmwkSolution}{\subsubsection*{Solution}}
\newcommand{\hmwkVerification}{\subsubsection*{Verification}}
\newcommand{\hmwkJustification}{\subsubsection*{Explanation}}
\newcommand{\hmwkExplanation}{\subsubsection*{Explanation}}
\newcommand{\hmwkObservation}{\subsubsection*{Thoughts \& Observations}}

\usepackage{changepage}
\usepackage{hyperref}
\usepackage{fancyhdr}
\usepackage{chngcntr}
\usepackage{float}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{xcolor}
\usepackage{tikz}
\usepackage{mathtools,amssymb,amsthm}

%
% Document setup.
%
\topmargin=-0.45in
\evensidemargin=0in
\oddsidemargin=0in
\textwidth=6.5in
\textheight=9.0in
\headsep=0.25in
\linespread{1.1}

\pagestyle{fancy}
\lhead{\hmwkAuthorName}
\chead{\hmwkClass\ (\hmwkClassInstructor,\ \hmwkSemester)}
\rhead{\hmwkTitle}
\cfoot{\thepage}

\renewcommand\headrulewidth{0.4pt}
\renewcommand\footrulewidth{0.4pt}

\setlength{\parindent}{0pt}
\setlength{\headheight}{15pt}

\hypersetup{
    colorlinks,
    citecolor=black,
    filecolor=black,
    linkcolor=black,
    urlcolor=black
}

\endinput