numpy documentation tutorial

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Leonie
10 Feb 2020
1>>> import numpy as np
2>>> a = np.array([0, 1, 2, 3])
3>>> a
4array([0, 1, 2, 3])
5
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Till
20 Nov 2017
1>>> np.zeros( (3,4) )
2array([[ 0.,  0.,  0.,  0.],
3       [ 0.,  0.,  0.,  0.],
4       [ 0.,  0.,  0.,  0.]])
5>>> np.ones( (2,3,4), dtype=np.int16 )                # dtype can also be specified
6array([[[ 1, 1, 1, 1],
7        [ 1, 1, 1, 1],
8        [ 1, 1, 1, 1]],
9       [[ 1, 1, 1, 1],
10        [ 1, 1, 1, 1],
11        [ 1, 1, 1, 1]]], dtype=int16)
12>>> np.empty( (2,3) )                                 # uninitialized, output may vary
13array([[  3.73603959e-262,   6.02658058e-154,   6.55490914e-260],
14       [  5.30498948e-313,   3.14673309e-307,   1.00000000e+000]])
15
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