﻿ NumPy: Generate inner, outer, and cross products of matrices and vectors - w3resource

# NumPy: Generate inner, outer, and cross products of matrices and vectors

## NumPy Mathematics: Exercise-14 with Solution

Write a NumPy program to generate inner, outer, and cross products of matrices and vectors.

Sample Solution:-

Python Code:

``````import numpy as np
x = np.array([1, 4, 0], float)
y = np.array([2, 2, 1], float)
print("Matrices and vectors.")
print("x:")
print(x)
print("y:")
print(y)
print("Inner product of x and y:")
print(np.inner(x, y))
print("Outer product of x and y:")
print(np.outer(x, y))
print("Cross product of x and y:")
print(np.cross(x, y))
```
```

Sample Output:

```Matrices and vectors.
x:
[ 1.  4.  0.]
y:
[ 2.  2.  1.]
Inner product of x and y:
10.0
Outer product of x and y:
[[ 2.  2.  1.]
[ 8.  8.  4.]
[ 0.  0.  0.]]
Cross product of x and y:
[ 4. -1. -6.]
```

Python Code Editor:

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Getting rid of unwanted characters:

You can get rid of whitespaces or any specific character using strip methods in Python. You can use either plain strip for both sides, lstrip for the left side and rstrip for the right side only.

```str="+++Welcome python+++"
str.strip()

print(str)```

Output:

`+++Welcome python+++`