numpy.polysub() in Python
Last Updated :
29 Nov, 2018
numpy.polysub() :This function helps to find the difference of two polynomials and then returning the result as a polynomial. Each input polynomial must be a sequence of polynomial coefficients, from highest to lowest degree.
Parameters :
p1 : Input polynomial 1 : 1x + 2.
p2 : Input polynomial 2 : 9x2 + 5x + 4
Return:
Difference of polynomials : (0-9)x2 + (1-5)x + (2-4)
import numpy as np
p1 = np.poly1d([ 1 , 2 ])
p2 = np.poly1d([ 9 , 5 , 4 ])
print ( "P1 : " , p1)
print ( "\nP2 : \n" , p2)
a = np.polysub(p1, p2)
print ( "\nP1 - P2 : \n" , a)
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Output:
P1 :
1 x + 2
P2 :
2
9 x + 5 x + 4
P1 - P2 :
2
-9 x - 4 x - 2
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