Python | Numpy np.poly2leg() method
Last Updated :
29 Dec, 2019
With the help of np.poly2leg()
method, we can get the Legendre series coefficient from a given polynomial.
Syntax : np.poly2leg(polynomial)
Return : Return the coefficient of Legendre series.
Example #1 :
In this example we can see that by using np.poly2leg()
method, we are able to get the coefficients of Legendre series from polynomial using this method.
import numpy as np
from numpy.polynomial.legendre import poly2leg
arr = np.array([ 0.1 , 0.2 , 0.3 , 0.4 , 0.5 ])
ans = poly2leg(arr)
print (ans)
|
Output :
[ 0.3 0.44 0.48571429 0.16 0.11428571]
Example #2 :
import numpy as np
from numpy.polynomial.legendre import poly2leg
arr = np.array([ - 0.5 , - 0.4 , - 0.3 , - 0.2 , - 0.1 , 0 , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 ])
ans = poly2leg(arr)
print (ans)
|
Output :
[-0.52692641 -0.34424242 0.08651349 0.16149184 0.27684316 0.13948718
0.13127578 0.03905114 0.02952276 0.00421226 0.00277122]
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