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How to compute Z to the power of n using numpy if Z is a large vector?
How to compute Z to the power of n using numpy if Z is a large vector?
This recipe helps you compute Z to the power of n using numpy if Z is a large vector
Recipe Objective
Many a times while handling arrays, we might need to find powers. We do have a function in numpy to handle such a situation. Null array comes quite handy while operating with numpy library in python.
So this recipe is a short example on how to compute power of a large array. Let's get started.
Step 1 - Import the library
import numpy as np
Let's pause and look at these imports. Numpy is generally helpful in data manipulation while working with arrays. It also helps in performing mathematical operation.
Step 2 - Defining power function
def power(Z,n):
return np.power(Z,n)
We have a created a function which will return an array passed to it raised to power n.
Step 3 - Printing array
print(power(np.random.random(1000),3))
We call power function to find out the array of size 1000 raised to the power n.
Step 4 - Lets look at our dataset now
Once we run the above code snippet, we will see:
Scroll down to the ipython file for visualizing the output.
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