Python | Numpy np.poly2lag() method
Last Updated :
06 Dec, 2022
With the help of np.poly2lag()
method, we can get the laguerre series coefficient from a given polynomial.
Syntax : np.poly2lag(polynomial)
Return : Return the coefficient of laguerre series.
Example #1 :
In this example we can see that by using np.poly2lag()
method, we are able to get the coefficients of laguerre series from polynomial using this method.
import numpy as np
from numpy.polynomial.laguerre import poly2lag
arr = np.array([ 0.1 , 0.2 , 0.3 , 0.4 , 0.5 ])
ans = poly2lag(arr)
print (ans)
|
Output :
[ 15.3 -56.6 79.8 -50.4 12. ]
Example #2 :
import numpy as np
from numpy.polynomial.laguerre import poly2lag
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 = poly2lag(arr)
print (ans)
|
Output :
[ 1.97272290e+06 -1.95546092e+07 8.72343894e+07 -2.30634853e+08
4.00196230e+08 -4.76216928e+08 3.93562584e+08 -2.23051248e+08
8.29664640e+07 -1.82891520e+07 1.81440000e+06]
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