Python | Numpy np.polyfromroots() method
np.polyfromroots()
method is used to generate a polynomial series with given roots.
Syntax : np.polyfromroots(roots)
Parameters:
roots :[array_like] Input sequence containing the roots.
Return : [ndarray] 1-D array of coefficients of polynomial series.
Code #1 :
import numpy as np
import numpy.polynomial.polynomial as geek
roots = ( 2 , 4 , 8 )
res = geek.polyfromroots(roots)
print (res)
|
Output:
[-64. 56. -14. 1.]
Code #2 :
import numpy as np
import numpy.polynomial.polynomial as geek
s = ( 1 , 2 , 3 , 4 , 5 )
res = geek.polyfromroots(s)
print (res)
|
Output:
[-120. 274. -225. 85. -15. 1.]
Last Updated :
31 Dec, 2019
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...