Add Unit 3

Author: Kayzels

README.md

@@ -60,4 +60,9 @@ For intellisense, a list of the commands is added in the [package_intellisense](
 - `sidenote`: Colored box used to indicate extra information.
 - `theorem`: Colored box used to write mathematical theorems.
 
+#### Mathematical Operators
+- `\adj`: Used to indicate the adjoint
+- `\proj`: Used to indicate the orthogonal projection of a vector
+- `\Area `: Used to indicate area
+
 ---

images/unit03/projection_example.png

@@ -13,7 +13,8 @@
 	\end{titlepage}
 	\clearpage\begingroup\pagestyle{empty}\cleardoublepage\endgroup
 	\tableofcontents
-	\rulechapterend
+	\noindent\rule{\textwidth}{0.4pt}
 	\addfile{units/unit01.tex}
 	\addfile{units/unit02.tex}
+	\addfile{units/unit03.tex}
 \end{document}

notes.tex

@@ -57,6 +57,8 @@
 
 % Mathematical Operators
 \DeclareMathOperator{\adj}{adj}
+\DeclareMathOperator{\proj}{proj}
+\DeclareMathOperator{\Area}{Area}
 
 % Tables
 \RequirePackage{tabularray}