Python Numpy np.legmul()用法及代碼示例

np.legmul()方法用於將一個Legendre係列乘以另一個，返回兩個Legendre係列的乘積c1 * c2.

用法： np.legmul(c1, c2)

參數：

c1, c2  :[  array_like ] 1-D arrays of Legendre series coefficients ordered from low to high.

返回：[ndarray]表示其乘積的Legendre級數係數。

代碼1：

# Python program explaining 
# numpy.legmul() method  
    
# importing numpy as np   
# and numpy.polynomial.legendre module as geek  
import numpy as np  
import numpy.polynomial.legendre as geek 
    
# Legendre series coefficients 
  
s1 = (2, 4, 8)  
s2 = (1, 3, 5)    
    
# using np.legmul() method  
res = geek.legmul(s1, s2)  
  
# Resulting Legendre series 
print (res)

輸出：

[ 14.          27.6         37.42857143  26.4         20.57142857]

代碼2：

# Python program explaining 
# numpy.legmul() method  
    
# importing numpy as np   
# and numpy.polynomial.legendre module as geek  
import numpy as np  
import numpy.polynomial.legendre as geek 
    
# Legendre series coefficients 
s1 = (10, 20, 30, 40, 50)  
s2 = (2, 4, 6, 8, 10)     
    
# using np.legmul() method  
res = geek.legmul(s1, s2)  
  
# Resulting Legendre series 
print (res)

輸出：

[ 183.93650794  451.80952381  666.43578644  755.23232323  786.997003
  626.61782662  512.26551227  326.34032634  190.36519037]

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