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Robofied/numpy_introduction1.py

Created February 12, 2019 16:34
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Numpy Library
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numpy_introduction1.py
#Import Numpy in Python
import numpy as np
a = np.random.rand(5,1)
print(a)
#[Output]:
#[[0.28642857]
# [0.51330181]
# [0.92992345]
# [0.27376296]
# [0.21996422]]
## Show how much time vectorized version take for calculation
import time
a = np.random.rand(1000000)
b = np.random.rand(1000000)
tic = time.time()
c = np.dot(a,b)
toc = time.time()
print("Vectorized Version " + str(1000*(toc-tic)) + "ms")
#[Output]:
#Vectorized Version 0.0ms
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