np.polyroots()
method is used to compute the roots of a polynomial series.Return the roots of the polynomial.
Syntax :
np.polyroots(c)
Parameters:
c :[array_like] 1-D arrays of polynomial series coefficients.Return : [ndarray] Array of the roots of the series. If all the roots are real, then out is also real, otherwise it is complex.
Code #1 :
# Python program explaining # numpy.polyroots() method # importing numpy as np # and numpy.polynomial.polynomial module as geek import numpy as np
import numpy.polynomial.polynomial as geek
# Input polynomial series coefficients s = ( 2 , 4 , 8 )
# using np.polyroots() method res = geek.polyroots(s)
# Resulting polynomial series coefficient print (res)
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Output:
[-0.25-0.4330127j -0.25+0.4330127j]
Code #2 :
# Python program explaining # numpy.polyroot() method # importing numpy as np # and numpy.polynomial.polynomial module as geek import numpy as np
import numpy.polynomial.polynomial as geek
# polynomial series coefficients s = ( 1 , 2 , 3 , 4 , 5 )
# using np.polyroots() method res = geek.polyroots(s)
# Resulting polynomial series print (res)
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Output:
[-0.53783227-0.35828469j -0.53783227+0.35828469j 0.13783227-0.67815439j 0.13783227+0.67815439j]