38 Numpy Qustions and answers in telugu

In [1]:

import numpy as np

In [2]:

np.zeros(10)

Out[2]:

array([ 0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.,  0.])

In [4]:

np.arange(10)*0

Out[4]:

array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0])

In [5]:

np.ones(10)

Out[5]:

array([ 1.,  1.,  1.,  1.,  1.,  1.,  1.,  1.,  1.,  1.])

In [6]:

np.ones(10)*5

Out[6]:

array([ 5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.])

In [7]:

np.zeros(10)+5

Out[7]:

array([ 5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.,  5.])

In [8]:

np.arange(10,51)

Out[8]:

array([10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
       27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
       44, 45, 46, 47, 48, 49, 50])

In [9]:

np.arange(10,51).shape

Out[9]:

(41,)

In [10]:

np.arange(10,51,2).r

Out[10]:

array([10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42,
       44, 46, 48, 50])

In [12]:

a=np.arange(0,9)

In [13]:

a.reshape(3,3)

Out[13]:

array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])

In [14]:

np.arange(0,9).reshape(3,3)

Out[14]:

array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])

In [15]:

np.eye(3)

Out[15]:

array([[ 1.,  0.,  0.],
       [ 0.,  1.,  0.],
       [ 0.,  0.,  1.]])

In [16]:

np.eye(4)

Out[16]:

array([[ 1.,  0.,  0.,  0.],
       [ 0.,  1.,  0.,  0.],
       [ 0.,  0.,  1.,  0.],
       [ 0.,  0.,  0.,  1.]])

In [22]:

np.random.rand()

Out[22]:

0.7090648141240633

In [24]:

np.random.randn(25).shape

Out[24]:

(25,)

In [26]:

np.random.randn(25)

Out[26]:

array([ 0.55678286, -0.18580945,  0.08005477,  0.53654464,  0.4838399 ,
        1.09138556,  1.00688417,  0.39684701, -1.23368431,  1.9531891 ,
       -1.10672488, -0.13322277, -1.31102628,  1.15314581, -0.30520792,
        0.07456077,  0.74786091, -0.19769166,  0.51588943, -1.11648334,
       -0.13272016, -0.19173315, -0.90512719,  0.0816647 ,  1.2630266 ])