Python| Numpy np.legmul() 方法

np.legmul()方法用于将一个勒让德级数乘以另一个。它返回两个勒让德级数c1 * c2.

Syntax : np.legmul(c1, c2)
Parameters:
c1, c2 :[ array_like ] 1-D arrays of Legendre series coefficients ordered from low to high.

Return : [ndarray] Legendre series coefficients representing their product.

代码#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) 

输出：

[ 14.          27.6         37.42857143  26.4         20.57142857]

代码#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) 

输出：

[ 183.93650794  451.80952381  666.43578644  755.23232323  786.997003
  626.61782662  512.26551227  326.34032634  190.36519037]