Question

In Python use the two arrays, X and Y, given below to create A_99 using numpy array math rather than a for-loop. Then calculate the standard deviation of A_99 and create a filled contour plot of X, Y, A_99.

# given X and Y arrays
X,Y = np.meshgrid(np.arange(0,10),np.arange(0,10))
A_99 = np.array(())

Answer 1

Points to consider:

1. First, we need to find the standard deviation of the numbers in the array.
2. Then we need to find the contour plot.

Code

import numpy as np
import matplotlib.pyplot as plt

# given X and Y arrays
X, Y = np.meshgrid(np.arange(0,10),np.arange(0,10))
A_99 = np.array((X, Y))
print(A_99)
print("The Standard Deviation: " + str(np.std(A_99)))

Z = np.sqrt(X**2 + Y**2)
cp = plt.contourf(X, Y, Z)
plt.colorbar(cp)
plt.show()

Code Snippet

Output

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