﻿ NumPy: Extract first, third and fifth elements of the third and fifth rows from a given (6x6) array - w3resource # NumPy: Extract first, third and fifth elements of the third and fifth rows from a given (6x6) array

## NumPy: Array Object Exercise-145 with Solution

Write a NumPy program to extract first, third and fifth elements of the third and fifth rows from a given (6x6) array.

Pictorial Presentation: Sample Solution:

Python Code:

``````import numpy as np
arra_data = np.arange(0,36).reshape((6, 6))
print("Original array:")
print(arra_data)
print("\nExtracted data: First, third and fifth elements of the third and fifth rows")
print(arra_data[2::2, ::2])
```
```

Sample Output:

```Original array:
[[ 0  1  2  3  4  5]
[ 6  7  8  9 10 11]
[12 13 14 15 16 17]
[18 19 20 21 22 23]
[24 25 26 27 28 29]
[30 31 32 33 34 35]]

Extracted data: First, third and fifth elements of the third and fifth rows
[[12 14 16]
[24 26 28]]
```

Python Code Editor:

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## Python: Tips of the Day

Set comprehension:

```>>> m = {x ** 2 for x in range(5)}
>>> m
{0, 1, 4, 9, 16}
```