﻿ NumPy: Find the roots of the given polynomials - w3resource

# NumPy: Find the roots of the given polynomials

## NumPy Mathematics: Exercise-16 with Solution

Write a NumPy program to find the roots of the following polynomials.
a) x2 − 4x + 7.
b) x4 − 11x3 + 9x2 + 11x – 10

Sample Solution:

Python Code:

``````import numpy as np
print("Roots of the first polynomial:")
print(np.roots([1, -2, 1]))
print("Roots of the second polynomial:")
print(np.roots([1, -12, 10, 7, -10]))
```
```

Sample Output:

```Roots of the first polynomial:
[ 1.  1.]
Roots of the second polynomial:
[ 11.04461946+0.j         -0.87114210+0.j          0.91326132+0.4531004
j
0.91326132-0.4531004j]
```

Python Code Editor:

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Getting rid of unwanted characters:

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```str="+++Welcome python+++"
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print(str)```

Output:

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