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Python | Numpy np.legmul() method
  • Last Updated : 31 Dec, 2019

np.legmul() method is used to multiply one Legendre series to another.It returns the product of two Legendre series 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.

Code #1 :

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# 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) 

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Output:



[ 14.          27.6         37.42857143  26.4         20.57142857]

 

Code #2 :

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# 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) 

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Output:

[ 183.93650794  451.80952381  666.43578644  755.23232323  786.997003
  626.61782662  512.26551227  326.34032634  190.36519037]

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