Q:

Write a NumPy program to create an array of 4,5 shape and to reverse the rows of the said array. After reversing 1st row will be 4th and 4th will be 1st, 2nd row will be 3rd row and 3rd row will be 2nd row

hamza
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2022-05-18
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Write a NumPy program to create an array of 4,5 shape and to reverse the rows of the said array. After reversing 1st row will be 4th and 4th will be 1st, 2nd row will be 3rd row and 3rd row will be 2nd row.

Python programming,
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hamza
2022-05-18
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import numpy as np
array_nums = np.arange(20).reshape(4,5)
print("Original array:")
print(array_nums)
print("\nAfter reversing:")
array_nums[:] = array_nums[3::-1]
print(array_nums)

Sample Output:

Original array:
[[ 0  1  2  3  4]
 [ 5  6  7  8  9]
 [10 11 12 13 14]
 [15 16 17 18 19]]

After reversing:
[[15 16 17 18 19]
 [10 11 12 13 14]
 [ 5  6  7  8  9]
 [ 0  1  2  3  4]]

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