﻿ NumPy: Compute the cross product of two given vectors - w3resource

# NumPy: Compute the cross product of two given vectors

## NumPy: Linear Algebra Exercise-3 with Solution

Write a NumPy program to compute the cross product of two given vectors.

NumPy: Cross product of two vectors

Sample Solution :

Python Code :

``````import numpy as np
p = [[1, 0], [0, 1]]
q = [[1, 2], [3, 4]]
print("original matrix:")
print(p)
print(q)
result1 = np.cross(p, q)
result2 = np.cross(q, p)
print("cross product of the said two vectors(p, q):")
print(result1)
print("cross product of the said two vectors(q, p):")
print(result2)
``````

Sample Output:

```original matrix:
[[1, 0], [0, 1]]
[[1, 2], [3, 4]]
cross product of the said two vectors(p, q):
[ 2 -3]
cross product of the said two vectors(q, p):
[-2  3]
```

Python Code Editor:

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## Python: Tips of the Day

Negative Indexing:

In Python you can use negative indexing. While positive index starts with 0, negative index starts with -1.

```name="Welcome"
print(name[0])
print(name[-1])
print(name[0:3])
print(name[-1:-4:-1])

```

Output:

```W
e
Wel
emo```