numpy library in python code example
Example 1: import numpy python
import numpy as np
Example 2: how to import numpy in python
import numpy
import numpy as np
Example 3: numpy
>>> import numpy as np
>>> a = np.array([2,3,4])
>>> a
array([2, 3, 4])
>>> a.dtype
dtype('int64')
>>> b = np.array([1.2, 3.5, 5.1])
>>> b.dtype
dtype('float64')
Example 4: numpy
x = 3
print(type(x))
print(x)
print(x + 1)
print(x - 1)
print(x * 2)
print(x ** 2)
x += 1
print(x)
x *= 2
print(x)
y = 2.5
print(type(y))
print(y, y + 1, y * 2, y ** 2)
Example 5: numpy
def quicksort(arr):
if len(arr) <= 1:
return arr
pivot = arr[len(arr) // 2]
left = [x for x in arr if x < pivot]
middle = [x for x in arr if x == pivot]
right = [x for x in arr if x > pivot]
return quicksort(left) + middle + quicksort(right)
print(quicksort([3,6,8,10,1,2,1]))
Example 6: numpy
t = True
f = False
print(type(t))
print(t and f)
print(t or f)
print(not t)
print(t != f)