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% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
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% Document Info
\author{hector}
\pdfinfo{
  /Title (numpy-python3.pdf)
  /Creator (Cheatography)
  /Author (hector)
  /Subject (Numpy Python3 Cheat Sheet)
}

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\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}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Numpy Python3 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{hector} via \textcolor{DarkBackground}{\uline{cheatography.com/91835/cs/20537/}}}
\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}hector \\
  \uline{cheatography.com/hector} \\
  \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 17th September, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
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  \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{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Operataing element by element}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ Operate n to all \{\{nl\}\}components}} & `vector + n`\{\{nl\}\} `matrix {\emph{ n`\{\{nl\}\} `vector }}* n` \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{ Operation using  another vector }} & `vector + vector ` \{\{nl\}\}`matrix * matrix` \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{ Matrix : Transpose }} & `matrix.T` \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{ Matrix multiplication }} & `np.dot(matrix,matrix.T)` \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Vectors \& Matrix}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Create vector from list}} & `x = np.array(x)` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{Create vector of n zeros}} & `zeros = np.zeros(n)` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{Create vector of n ones}} & `ones = np.ones(n)` \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{Create vector of type float32}} & `np.array({[}1,-0.3,2{]}, dtype=np.float32)` \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{Change type of a vector}} & `vector = \seqsplit{vector.astype(np.uint32)`} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{Create matrix of ones}} & `m1 = np.ones((5,4))` \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{Create matrix from other matrix shape}} & `m2 = np.zeros\_like(m1)` \tn 
% Row Count 15 (+ 3)
% Row 7
\SetRowColor{white}
{\bf{Reshape a matrix (constant size)}} & `mat=mat.reshape((6,3))` \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Matrix \& Vectors Operations}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Sum of all components}} & `np.sum(vector)`\{\{nl\}\} `vector.sum()` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{Maximum}} & `np.max(vector)` \{\{nl\}\} `vector.max()` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{Minimum}} & `np.min(vector)` \{\{nl\}\} `vector.min()` \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{Product}} & `np.prod(vector)` \{\{nl\}\} `vector.prod()` \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{Operation over column}} & `matriu.sum(axis=0)` \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{Operation over row}} & `matriu.sum(axis=1)` \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{Absolute}} & `np.sum(matriu)` \tn 
% Row Count 13 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Indexing}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Especific element}} & \{\{nobreak\}\}`matrix{[}row,column {]}` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{Range of row / columns}} & \{\{nobreak\}\}`matrix{[} rI : rE, cI :cE{]} ` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{Submatrix }}({\emph{same matrix}}) & \{\{nobreak\}\}`submatrix = matrix{[}1:3, 1:3{]} ` \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
{\bf{Submatrix}}\{\{nl\}\}({\emph{Different matrix}}) & \{\{nobreak\}\}`submatrix = submatrix.copy()` \tn 
% Row Count 10 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{Boolean Indexing }}} \tn 
% Row Count 11 (+ 1)
% Row 5
\SetRowColor{white}
{\bf{ Finding negative values}} & negatius = example \textless{} 0 \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{Selecting negative values}} & example{[}negatius{]} \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{Changing values directly}} & example{[}example==0{]} = 0 \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Broadcasting}}  \tn
% Row 0
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{\bf{Normalize a matrix by columns}} & \{\{nobreak\}\}`np.random.uniform(size=(3,4))`\{\{nl\}\}\{\{nobreak\}\}`sumes = matrix.sum(axis=0)`\{\{nl\}\} `norm = matrix/sumes` \tn 
% Row Count 6 (+ 6)
% Row 1
\SetRowColor{white}
{\bf{Normalize a matrix by rows}}** & \{\{nobreak\}\}`norm=(matrix.T/sumes).T` \{\{nl\}\}\{\{nobreak\}\}`norm=matrix/sumes.reshape((3,1))` \tn 
% Row Count 10 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{ Not-a-Number ( {\emph{Nan}})}}} \tn 
% Row Count 11 (+ 1)
% Row 3
\SetRowColor{white}
{\bf{Initialize as {\emph{NaN}} }} & `a = np.nan \tn 
% Row Count 13 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{ Test if is {\emph{NaN}} }} & `np.isnan(a)` \tn 
% Row Count 15 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{ Test also with vectors }} & `np.isnan(vector)` \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Extra}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Random uniform matrix }} & \{\{nobreak\}\}`np.random.uniform(size=(3,4))` \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{Another type of \{\{nl\}\} random matrix}} & \{\{nobreak\}\}`np.random.uniform(-1,1,size=(3,4))` \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{ Copying a matrix}} & `matrix = matrix.copy()` \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{ Shape of a matrix }} & `matrix.shape` \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{ Data types }} & `dtype = np.float32`\{\{nl\}\}`dtype = np.float64`\{\{nl\}\}`dtype = np.int32`\{\{nl\}\}`dtype = uint32`\{\{nl\}\}`dtype = np.int8`\{\{nl\}\}`dtype = np.int8`\{\{nl\}\}`dtype = np.uint8` \tn 
% Row Count 19 (+ 9)
% Row 5
\SetRowColor{white}
{\bf{ Importing }} & `import numpy as np` \tn 
% Row Count 20 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}