\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
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\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{xonnex}
\pdfinfo{
  /Title (haskell.pdf)
  /Creator (Cheatography)
  /Author (xonnex)
  /Subject (Haskell Cheat Sheet)
}

% Lengths and widths
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\addtolength{\voffset}{-2cm}
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\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\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{Haskell Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{xonnex} via \textcolor{DarkBackground}{\uline{cheatography.com/196187/cs/41216/}}}
\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}xonnex \\
  \uline{cheatography.com/xonnex} \\
  \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 7th November, 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*}{4}

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\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Class Constraints}}  \tn
% Row 0
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% Row Count 1 (+ 1)
% Row 1
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 & Contains types whose values can be compared for equality and inequality \tn 
% Row Count 3 (+ 2)
% Row 2
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 & methods: (==), (/=) \tn 
% Row Count 4 (+ 1)
% Row 3
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% Row Count 5 (+ 1)
% Row 4
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 & Contains types whose values are totally ordered \tn 
% Row Count 7 (+ 2)
% Row 5
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% Row Count 9 (+ 2)
% Row 6
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\mymulticolumn{2}{x{3.833cm}}{Show – showable types} \tn 
% Row Count 10 (+ 1)
% Row 7
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 & Contains types whose values can be converted into strings of characters \tn 
% Row Count 12 (+ 2)
% Row 8
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 & method show :: a -\textgreater{} String \tn 
% Row Count 13 (+ 1)
% Row 9
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% Row Count 14 (+ 1)
% Row 10
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 & Contains types whose values are numeric \tn 
% Row Count 16 (+ 2)
% Row 11
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 & methods: (+), (-), (*), negate, abs, signum \tn 
% Row Count 18 (+ 2)
% Row 12
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\mymulticolumn{2}{x{3.833cm}}{Integral – integral types} \tn 
% Row Count 19 (+ 1)
% Row 13
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 & Contains types that are numeric but of integral value \tn 
% Row Count 21 (+ 2)
% Row 14
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 & methods: div, mod \tn 
% Row Count 22 (+ 1)
% Row 15
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{Fractional – fractional types} \tn 
% Row Count 23 (+ 1)
% Row 16
\SetRowColor{LightBackground}
 & Contains types that are numeric but of fractional value \tn 
% Row Count 25 (+ 2)
% Row 17
\SetRowColor{white}
 & methods: (/), recip \tn 
% Row Count 26 (+ 1)
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.58361 cm} x{2.84939 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Predefined Functions}}  \tn
% Row 0
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\mymulticolumn{2}{x{3.833cm}}{cos} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{2}{x{3.833cm}}{sin} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
fst & first argument \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
snd & second argument \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
show & display (will display "\textbackslash{}246" instead of "{\"o}") \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{putStrLn} & IO display (will display "{\"o}") \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{import Data.Char} \tn 
% Row Count 9 (+ 1)
% Row 7
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\mymulticolumn{2}{x{3.833cm}}{isDigit 'a'} \tn 
% Row Count 10 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{isUpperCase 'a'} \tn 
% Row Count 11 (+ 1)
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
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% Row 0
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% Row Count 1 (+ 1)
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{3.0897 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row Count 2 (+ 1)
% Row 2
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fstInt (1, 3) & 1 \tn 
% Row Count 3 (+ 1)
% Row 3
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% Row Count 3 (+ 0)
% Row 4
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% Row Count 4 (+ 1)
% Row 5
\SetRowColor{white}
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% Row Count 5 (+ 1)
% Row 6
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% Row Count 6 (+ 1)
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\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{constants like 0, {[}{]} or an enum \newline names like n \newline wildcard "\_" (matches always but binds no name to the matched value) \newline structures like lists (x:xs) or tuples (a,b)}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.3732 cm} x{2.0598 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
cabal run & Runs cabal project \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
ghci & Open interactive shell \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
ghci fileName.hs & Open shell and load file \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Functions}}  \tn
% Row 0
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\mymulticolumn{2}{x{3.833cm}}{data Color = Red | Yellow | Green deriving (Show)} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{2}{x{3.833cm}}{data ToDo = Stop | Wait | Go deriving (Show)} \tn 
% Row Count 2 (+ 1)
% Row 2
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% Row Count 3 (+ 1)
% Row 3
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% Row Count 4 (+ 1)
% Row 4
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% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
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% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{"-\textgreater{}" whenever the arrow is shown, we have ourselves a function}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.75083 cm} x{1.68217 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{ghci}}  \tn
% Row 0
\SetRowColor{LightBackground}
:r & reload file \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
:q & quit \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
:t var & show type of var \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
:i + & show type of operator \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
:\{ & start multiline \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
:\} & end multiline \tn 
% Row Count 7 (+ 1)
% Row 6
\SetRowColor{LightBackground}
(var1, var2, ...) :: (Type1, Type2, ...) & Validates type \tn 
% Row Count 9 (+ 2)
% Row 7
\SetRowColor{white}
\{-\# OPTIONS\_GHC -Wall \#-\} & Shows info in case something is missing \tn 
% Row Count 12 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Bool}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{True} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{2}{x{3.833cm}}{False} \tn 
% Row Count 2 (+ 1)
% Row 2
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\mymulticolumn{2}{x{3.833cm}}{a \&\& b} \tn 
% Row Count 3 (+ 1)
% Row 3
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\mymulticolumn{2}{x{3.833cm}}{a || b} \tn 
% Row Count 4 (+ 1)
% Row 4
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% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.13289 cm} x{2.30011 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Lists}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{{[}1,2,3,4{]}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{{[}(1,2),(3,4){]}} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{ones = 1 : ones} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
head {[}1,2,3{]} & 1 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
tail {[}1,2,3{]} & {[}2,3{]} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
init {[}1,2,3{]} & {[}1,2{]} \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
last {[}1,2,3{]} & 3 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
take 2 {[}1,2,3{]} & {[}1,2{]} \tn 
% Row Count 9 (+ 2)
% Row 8
\SetRowColor{LightBackground}
uncons {[}1,2,3{]} & Just (1, {[}2,3{]}) \tn 
% Row Count 11 (+ 2)
% Row 9
\SetRowColor{white}
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% Row Count 12 (+ 1)
% Row 10
\SetRowColor{LightBackground}
map (+1) {[}1, 2, 3{]} & {[}2,3,4{]} \tn 
% Row Count 14 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{filter :: (a -\textgreater{} Bool) -\textgreater{} {[}a{]} -\textgreater{} {[}a{]}} \tn 
% Row Count 15 (+ 1)
% Row 12
\SetRowColor{LightBackground}
filter odd {[}1, 2, 3{]} & {[}1,3{]} \tn 
% Row Count 17 (+ 2)
% Row 13
\SetRowColor{white}
null {[}{]} & \textasciitilde{}\textgreater{} True -{}- Checks whether list is empty (performant) \tn 
% Row Count 19 (+ 2)
% Row 14
\SetRowColor{LightBackground}
length {[}{]} & \textasciitilde{}\textgreater{} 0  -{}- Checks length (need to go through the whole list) \tn 
% Row Count 22 (+ 3)
% Row 15
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{} \tn 
% Row Count 22 (+ 0)
% Row 16
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{{[}a,b,c{]} = a : (b : (c : {[}{]}))} \tn 
% Row Count 23 (+ 1)
% Row 17
\SetRowColor{white}
{[}{]} & nil \tn 
% Row Count 24 (+ 1)
% Row 18
\SetRowColor{LightBackground}
(:) & cons operator \tn 
% Row Count 25 (+ 1)
% Row 19
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{} \tn 
% Row Count 25 (+ 0)
% Row 20
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{stdMatch :: Show a =\textgreater{} {[}a{]} -\textgreater{} String} \tn 
% Row Count 26 (+ 1)
% Row 21
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{stdMatch {[}{]}     = "Matched empty list"} \tn 
% Row Count 27 (+ 1)
% Row 22
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{stdMatch (x:xs) = "Matched list with head " ++ show x} \tn 
% Row Count 29 (+ 2)
% Row 23
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{} \tn 
% Row Count 29 (+ 0)
% Row 24
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{ml :: Show a =\textgreater{} {[}a{]} -\textgreater{} String} \tn 
% Row Count 30 (+ 1)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{x{1.13289 cm} x{2.30011 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Lists (cont)}}  \tn
% Row 25
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{ml {[}x{]}   = "Matched list with one element" ++ show x} \tn 
% Row Count 2 (+ 2)
% Row 26
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{ml {[}x,y{]} = "Matched list with two elements"} \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{sequence of elements of the same type \newline infinite amount of elements \newline immutable \newline "++" concat two lists}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{2.43743 cm} x{0.99557 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{String}}  \tn
% Row 0
\SetRowColor{LightBackground}
reverse "abc" & "cba" \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{[}'a','b','c'{]} == "abc" & True \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
"Foo" ++ " " ++ "Bar" & "Foo Bar" \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{String = {[}Char{]}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Chars}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{'a', ,} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{' '} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{'\textbackslash{}n'} \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Where Bindings}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{amountToText :: Int -\textgreater{} String} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{amountToText amount} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & | amount \textgreater{}= high = "Many" \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
 & | amount \textgreater{}= mid = "Medium" \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & | otherwise = "Low" \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
 & where \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
 & high = 10 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
 & mid = 5 \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Conditional Expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{if a == b} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
 & then "Eq" \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & else "Not Eq" \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Where Bindings}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{amountToText :: Int -\textgreater{} String} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{amountToText amount} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & | amount \textgreater{}= high = "Many" \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
 & | amount \textgreater{}= mid = "Medium" \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & | otherwise = "Low" \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
 & where \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
 & high = 10 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
 & mid = 5 \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Guards}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{abs :: (Num a, Ord a) =\textgreater{} a -\textgreater{} a} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{abs n} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & | n \textless{} 0 = -n \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
 & | otherwise = n \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Function Composition}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{g . f = \textbackslash{}x -\textgreater{} g (f x)} \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.0299 cm} x{2.4031 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Lambda Expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{\textbackslash{}x -\textgreater{} x + 1} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\textbackslash{}p q -\textgreater{} e & same as \textbackslash{}p -\textgreater{} \textbackslash{}q -\textgreater{} e \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Let Bindings}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{cylinder :: Float -\textgreater{} Float -\textgreater{} Float} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{cylinder r h =} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & let sideArea = 2 {\emph{ pi }} r * h \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
 & topArea = pi * r \textasciicircum{} 2 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & in 2 * topArea + sideArea \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Double}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{} \tn 
% Row Count 0 (+ 0)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{Floating Point Number 64 bit}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} x{3.0897 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Case Expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{case expression of} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
 & pattern -\textgreater{} result \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & pattern -\textgreater{} result \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{} \tn 
% Row Count 3 (+ 0)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{describeList :: {[}a{]} -\textgreater{} String} \tn 
% Row Count 4 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{describeList xs = "The list is " ++ case xs of} \tn 
% Row Count 5 (+ 1)
% Row 6
\SetRowColor{LightBackground}
 & {[}{]} -\textgreater{} "empty." \tn 
% Row Count 6 (+ 1)
% Row 7
\SetRowColor{white}
 & {[}x{]} -\textgreater{} "a singleton list." \tn 
% Row Count 7 (+ 1)
% Row 8
\SetRowColor{LightBackground}
 & xs -\textgreater{} "a longer list." \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{0.96124 cm} x{2.47176 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Integer}}  \tn
% Row 0
\SetRowColor{LightBackground}
maxBound :: Int & max int \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
45 & literals will always default to Integer \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{long in Java 2\textasciicircum{}64}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.61351 cm} x{1.81949 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Record Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{data Person = MkPerson \{ name :: String, age :: Int \} deriving (Show)} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{me = MkPerson "XonneX" 99} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
name me & "XonneX" \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
age me & 99 \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.99114 cm} x{1.44186 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Type Synonyms}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{type Coord = (Int, Int)} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{xCoord :: Coord -\textgreater{} Int} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{xCoord (x, y) = x} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{time :: (Int, Int)} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{time = (23, 59)} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
xCoord time & compiles \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{The keyword type can be used to introduce a new name (a synonym) for an existing type. \newline This does not create a new type, only a new name!}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.3433 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Tuples}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{(False, 8, "Hallo") :: (Bool, Int, String)} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{((True, 8), (12, "Hallo")) :: ((True, 8), (12, "Hallo"))} \tn 
% Row Count 3 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.6866 cm} x{2.7464 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Enumerations}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{data Color = Red | Yellow | Green} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
show Green & Would fail as no toString method is not implemented \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{data Color = Red | Yellow | Green deriving (Show)} \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
show Green & Displays "Green" as toString method is implemented \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{3.0897 cm} p{0.3433 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{(|+|) :: Int -\textgreater{} Int -\textgreater{} Int} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{a |+| b = abs a + abs b} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
1 |+| (-2) & 3 \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}