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Python Numpy np.lagfromroots()用法及代碼示例


np.lagfromroots()方法用於生成具有給定根的Laguerre級數。

用法: np.lagfromroots(roots)
參數:
roots :[array_like] Input sequence containing the roots.

返回:[ndarray] Laguerre級數的一維係數數組。


代碼1:

# Python program explaining 
# numpy.lagfromroots() method  
    
# importing numpy as np   
# and numpy.polynomial.laguerre module as geek  
import numpy as np  
import numpy.polynomial.laguerre as geek 
    
# Input roots 
  
roots = (2, 4, 8)  
     
# using np.lagfromroots() method  
res = geek.lagfromroots(roots)  
  
# Resulting laguerre series coefficient 
print (res) 
輸出:
[-30. -18. -10.  -6.]

代碼2:

# Python program explaining 
# numpy.lagfromroots() method  
    
# importing numpy as np   
# and numpy.polynomial.laguerre module as geek  
import numpy as np  
import numpy.polynomial.laguerre as geek 
    
# Input roots 
s = (1, 2, 3, 4, 5)  
  
    
# using np.lagfromroots() method  
res = geek.lagfromroots(s)  
  
# Resulting laguerre series coefficient 
print (res) 
輸出:
[ -26.  -64.  120. -270.  240. -120.]



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注:本文由純淨天空篩選整理自jana_sayantan大神的英文原創作品 Python | Numpy np.lagfromroots() method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。