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% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
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% Document Info
\author{DarioPittera (aggialavura)}
\pdfinfo{
  /Title (python-numpy.pdf)
  /Creator (Cheatography)
  /Author (DarioPittera (aggialavura))
  /Subject (Python - Numpy Cheat Sheet)
}

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\noindent
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    {\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{Python - Numpy Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{DarioPittera (aggialavura)} via \textcolor{DarkBackground}{\uline{cheatography.com/83764/cs/19825/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}DarioPittera (aggialavura) \\
  \uline{cheatography.com/aggialavura} \\
        \uline{\seqsplit{www}.dariopittera.com}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 24th June, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\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*}{2}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{TO START}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{import numpy as np \newline  \newline \# optional: to shorten the writing \newline \# avoid to type np.random \newline from numpy.random import randint} \tn 
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\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.48 cm} x{3.52 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ARRAYS}}  \tn
% Row 0
\SetRowColor{LightBackground}
np.array(my\_list) & create array from list \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
np.array(my\_matrix)\{\{nobreak\}\} & create array from matrix \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{METHODS (to create arrays)}}  \tn
% Row 0
\SetRowColor{LightBackground}
np.arange(n1, n2) & create array \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}np.arange(n1, n2, n3) & create array with step \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
np.zeros() * & zeroes array \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
np.ones() * & ones array \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
{\bf{np.linespace(n1,n2,n3)\{\{nobreak\}\}}} * & evenly spaced numbers in an interval \tn 
% Row Count 8 (+ 3)
% Row 5
\SetRowColor{white}
np.eye() & identity matrix \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
np.random.rand() * & random from uniform distribution \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
np.random.randn() & random from normal distribution \tn 
% Row Count 13 (+ 2)
% Row 8
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{\bf{np.random.randint()}} & random integers\{\{nl\}\} from low (inclusive) \{\{nl\}\}to high (exclusive) \tn 
% Row Count 17 (+ 4)
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\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{{\bf{np.zeros/ones}} can take two numbers (rows and columns) \newline {\bf{linespace()}}: n3 numbers from n1 to n2. \newline {\bf{np.random.rand()}} can take 2 numbers (rows and columns).}  \tn 
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.52 cm} x{4.48 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ARRAY ATTRIBUTES AND METHODS}}  \tn
% Row 0
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{\bf{arr.reshape(r,c)*\{\{nobreak\}\}}} & change shape of array \tn 
% Row Count 2 (+ 2)
% Row 1
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arr.max() & find max value \tn 
% Row Count 3 (+ 1)
% Row 2
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arr.argmax() & find index of maxim value \tn 
% Row Count 5 (+ 2)
% Row 3
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arr.min() & find min value \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
arr.argmin() & find index of minim value \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{arr.shape}} & return array shape \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
arr.reshape().shape\{\{nobreak\}\} & reshape array and \{\{nl\}\} return array shape \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{arr.dtype}} & return array type \tn 
% Row Count 12 (+ 1)
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\mymulticolumn{2}{x{8.4cm}}{{\bf{(r,c)}} mean "row, column"}  \tn 
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\begin{tabularx}{8.4cm}{x{4.16 cm} x{3.84 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ARRAY INDEXING AND SELECTION}}  \tn
% Row 0
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arr{[}{]} & select item in array \tn 
% Row Count 2 (+ 2)
% Row 1
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arr{[}x:x{]} & select items in range \tn 
% Row Count 4 (+ 2)
% Row 2
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arr{[}:x{]} & select items up to x \tn 
% Row Count 6 (+ 2)
% Row 3
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arr{[}x:{]} & select items from x and beyond \tn 
% Row Count 8 (+ 2)
% Row 4
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{\bf{arr{[}0:5{]}=100 \{\{nobreak\}\}* }} & broadcast value in range \tn 
% Row Count 10 (+ 2)
% Row 5
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{\bf{arr.copy()}} & copy the array \tn 
% Row Count 11 (+ 1)
% Row 6
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arr\_2d{[}r,c{]}* & select in 2D arrays \tn 
% Row Count 12 (+ 1)
% Row 7
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arr\_2d{[}r{]}{[}c{]} & select in 2D arrays (opt.2) \tn 
% Row Count 14 (+ 2)
% Row 8
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arr\_2d{[}:2,1:{]}* & slicing (2 is not included) \tn 
% Row Count 16 (+ 2)
% Row 9
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arr\_2d{[}2{]} & show third row \tn 
% Row Count 17 (+ 1)
% Row 10
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arr\_2d{[}2, :{]} & show third row (opt.2) \tn 
% Row Count 19 (+ 2)
% Row 11
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{\bf{arr\_2d{[}{[}2,4,6,8{]}{]}}}\{\{nobreak\}\} & show row 2,4,6,8 \tn 
% Row Count 21 (+ 2)
% Row 12
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{\bf{arr{[}arr\textgreater{}x{]}}} & conditional selection \tn 
% Row Count 23 (+ 2)
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\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{{\bf{note}}: changes will happen also into the original array \newline {\bf{{[}r,c{]}}} mean "row, column" \newline {\bf{When slicing}} in this example, 2, is not included. Generally, the term after the column (:) is not included when slicing.}  \tn 
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\begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{OPERATIONS}}  \tn
% Row 0
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arr + arr & sum two arrays \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
arr * arr & multiply two arrays \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
arr - arr & subtract two arrays \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
arr / arr & divide two arrays \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
arr ** x & array to exponential \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
\seqsplit{np.sqrt(arr)} & sqaure root of array \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
np.exp(arr) & exponential of array (e\textasciicircum{}) \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
np.max(arr) & find max value \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
np.sin(arr) & sin of array \tn 
% Row Count 9 (+ 1)
% Row 9
\SetRowColor{white}
np.log(arr) & lof of an array \tn 
% Row Count 10 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}