6 files changed, 103 insertions, 9 deletions
diff --git a/homeworks/hw-4.org b/homeworks/hw-4.org
index ba82878..8884f63 100644
--- a/homeworks/hw-4.org
+++ b/homeworks/hw-4.org
@@ -1,10 +1,34 @@
-* My Basic Routines
-* Linear Solution Routines
-** Gaussian Elimination with Backwards Substitution
-** LU factorization
-* Matrix Routines
-** dotproduct
-** crossproduct
-** matrixvector
-** matrixmatrix
+#+TITLE: Homework 4
+#+AUTHOR: Elizabeth Hunt
+#+LATEX_HEADER: \notindent \notag  \usepackage{amsmath} \usepackage[a4paper,margin=1in,portrait]{geometry}
+#+LATEX: \setlength\parindent{0pt}
+#+OPTIONS: toc:nil
 
+* Question 1
+See the attached LIZFCM Software Manual.
+
+* Question 2, 3, 4
+#+attr_latex: :width 350px
+[[./img/make_run.png]]
+
+* Question 5
+#+attr_latex: :width 350px
+[[./img/test_routine_1.png]]
+
+#+attr_latex: :width 350px
+[[./img/test_routine_2.png]]
+
+* Question 6
+See the LIZFCM Software Manual.
+
+* Question 7
+See ~src/matrix.c -> lu_decomp, fsubst, bsubst, solve_matrix~
+
+* Question 8
+See ~test/main.c -> lines 109 - 113~ in correspondence to the run in Question 5
+
+* Question 9
+See ~test/main.c -> lines 118 - 121~ in correspondence to the run in Question 5
+
+* Question 10
+See the TOC on the first page of the LIZFCM Software Manual.
diff --git a/homeworks/hw-4.pdf b/homeworks/hw-4.pdf
new file mode 100644
index 0000000..8d515c7
--- /dev/null
+++ b/homeworks/hw-4.pdf
diff --git a/homeworks/hw-4.tex b/homeworks/hw-4.tex
new file mode 100644
index 0000000..a3667f5
--- /dev/null
+++ b/homeworks/hw-4.tex
@@ -0,0 +1,70 @@
+% Created 2023-10-13 Fri 20:54
+% Intended LaTeX compiler: pdflatex
+\documentclass[11pt]{article}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{graphicx}
+\usepackage{longtable}
+\usepackage{wrapfig}
+\usepackage{rotating}
+\usepackage[normalem]{ulem}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{capt-of}
+\usepackage{hyperref}
+\notindent \notag  \usepackage{amsmath} \usepackage[a4paper,margin=1in,portrait]{geometry}
+\author{Elizabeth Hunt}
+\date{\today}
+\title{Homework 4}
+\hypersetup{
+ pdfauthor={Elizabeth Hunt},
+ pdftitle={Homework 4},
+ pdfkeywords={},
+ pdfsubject={},
+ pdfcreator={Emacs 28.2 (Org mode 9.7-pre)}, 
+ pdflang={English}}
+\begin{document}
+
+\maketitle
+\setlength\parindent{0pt}
+
+\section{Question 1}
+\label{sec:org0ce46da}
+See the attached LIZFCM Software Manual.
+
+\section{Question 2, 3, 4}
+\label{sec:org0794d50}
+\begin{center}
+\includegraphics[width=350px]{./img/make_run.png}
+\end{center}
+
+\section{Question 5}
+\label{sec:orgf7b84cc}
+\begin{center}
+\includegraphics[width=350px]{./img/test_routine_1.png}
+\end{center}
+
+\begin{center}
+\includegraphics[width=350px]{./img/test_routine_2.png}
+\end{center}
+
+\section{Question 6}
+\label{sec:orgee1884d}
+See the LIZFCM Software Manual.
+
+\section{Question 7}
+\label{sec:org6f86e09}
+See \texttt{src/matrix.c -> lu\_decomp, fsubst, bsubst, solve\_matrix}
+
+\section{Question 8}
+\label{sec:orga79c31e}
+See \texttt{test/main.c -> lines 109 - 113} in correspondence to the run in Question 5
+
+\section{Question 9}
+\label{sec:org5b1b74d}
+See \texttt{test/main.c -> lines 118 - 121} in correspondence to the run in Question 5
+
+\section{Question 10}
+\label{sec:org7409683}
+See the TOC on the first page of the LIZFCM Software Manual.
+\end{document}
+\ No newline at end of file
diff --git a/homeworks/img/make_run.png b/homeworks/img/make_run.png
new file mode 100644
index 0000000..f20015e
--- /dev/null
+++ b/homeworks/img/make_run.png
diff --git a/homeworks/img/test_routine_1.png b/homeworks/img/test_routine_1.png
new file mode 100644
index 0000000..a4e2a02
--- /dev/null
+++ b/homeworks/img/test_routine_1.png
diff --git a/homeworks/img/test_routine_2.png b/homeworks/img/test_routine_2.png
new file mode 100644
index 0000000..befdf19
--- /dev/null
+++ b/homeworks/img/test_routine_2.png