\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{colortbl}           % For coloured tables
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\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{bobbey}
\pdfinfo{
  /Title (personal.pdf)
  /Creator (Cheatography)
  /Author (bobbey)
  /Subject (Personal Cheat Sheet)
}

% Lengths and widths
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Personal Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{bobbey} via \textcolor{DarkBackground}{\uline{cheatography.com/197967/cs/41831/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}bobbey \\
  \uline{cheatography.com/bobbey} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 22nd December, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{1.24425 cm} x{3.73275 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Policy Functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Elig}} & Function to determine eligibility for receiving benefits \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{ArithOp}} & Simple calculator for common arithmetic operations \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{BenCalc}} & Used for modelling policy instruments with various components \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
{\bf{DefConst}} & Define constants \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{SchedCalc}} & Allows for the implementation of the most common (tax) schedules \tn 
% Row Count 12 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{ArithOp and Interaction}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703245516_ArithOp.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{ArithOp}} allows for simple calculations. It requires three compulsory parameters: {\bf{formula}} contains the calculations to perform; {\bf{output\_var}} indicates the variable where results are stored; and {\bf{TAX\_UNIT}} indicates the assessment unit for the calculations performed.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Elig}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703245328_Elig.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Elig}} determines the eligibility for of a unit according to a specific condition. It requires two parameters: {\bf{elig\_cond}} that determines the condition, and {\bf{TAX\_UNIT}} that determines the assessment unit.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Elig + ArithOp}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703245768_Arith+Elig.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Elig}} and {\bf{ArithOp}} can be combined via the parameter {\bf{Who\_Must\_Be\_Elig}}. Depending on the selection, this parameter ensures that calculations of the {\bf{ArithOp}} are carried out if, one, one\_adult, all, all\_adults or nobody in the assessment unit fill the conditions defined defined in {\bf{Elig}}.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{BenCalc}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703246808_BenCalc.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{BenCalc}} is a powerful function typically used to implement means-tested benefits that consist of several components. It combines the functionalities of {\bf{Elig}} and {\bf{ArithOp}} and has 4 compulsory parameters: {\bf{Comp\_cond}} defines a condtion; {\bf{Comp\_perXX}} calculates a formula an applies it the assessment unit; {\bf{Grp/No}} groups together condition and formula; {\bf{outputvar}} and {\bf{TAX\_UNIT}}.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{SchedCalc}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703256750_SchedCalc.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{SchedCalc}} is used in progressive taxes to define a tax schedule. It has various parameters that can be used, such as: tax bands ({\bf{Band\_UpLim / Band\_LowLim}}), tax rates ({\bf{Band\_Rate}}) and tax base ({\bf{Base}}). These parameters are grouped together via {\bf{Grp/No}}. To split the base and apply the schedule separately the parameter {\bf{Quotient}} can be used.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.4931 cm} x{3.4839 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{System functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
Uprate & Uprating of monetary dataset variables \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
SetDefault & Definition of income lists \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
DefTU & Definition of assessment units \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
DefOutput & Definition of model output \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
DefVar \& DefConst & Definition of intermediate variables and constants \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{DefConst}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/bobbey_1703253867_DefConst.PNG}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{DefConst}} allows to define tax-benefit policy parameters as constants (e.g. monthly amounts, income thresholds, maximum amounts, etc.). For notation purposes, constants are notated with a \$ prefix.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Special Functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Loop \& UnitLoop}} & Repeat part (or all) tax-benefit calculations \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{Store \& Restore}} & Store and restore variables to their previous values \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{ChangeParam}} & Change value parameters \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{Totals}} & Calculate aggregates of variables or incomelists over the whole population or a subset \tn 
% Row Count 11 (+ 4)
% Row 4
\SetRowColor{LightBackground}
{\bf{DropUnit \& KeepUnit}} & Drop (or keep) individuals, families or households with special characteristics \tn 
% Row Count 15 (+ 4)
% Row 5
\SetRowColor{white}
{\bf{ILVarOp}} & Operations on the variables of an incomelist \tn 
% Row Count 17 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{RandSeed}} & Generate a series of pseudorandom numbers \tn 
% Row Count 19 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{CallProgramme}} & Call external application \tn 
% Row Count 21 (+ 2)
% Row 8
\SetRowColor{LightBackground}
{\bf{DefInput}} & Read values for one or more variables from a text file \tn 
% Row Count 24 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}