Python | Numpy np.lagder() method

np.lagroots() method is used to differentiate a Laguerre series.

Syntax : np.lagder(c, m=1, scl=1, axis=0)
Parameters:
c :[array_like] 1-D arrays of Laguerre series coefficients ordered from low to high.
m :[int, optional] Number of derivatives taken, must be non-negative.Default is 1.
scl :[scalar, optional] Each differentiation is multiplied by scl .Default is 1.
axis :[ int, optional] Axis over which the derivative is taken.Default is 0.

Return : [ndarray] Laguerre series of the derivative.

Code #1 :

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python program explaining
# numpy.lagder() method 
    
# importing numpy as np  
# and numpy.polynomial.laguerre module as geek 
import numpy as np 
import numpy.polynomial.laguerre as geek
    
# Input laguerre series coefficients
  
s = (2, 4, 8) 
     
# using np.lagder() method 
res = geek.lagder(s) 
  
# Resulting laguerre series coefficient
print (res) 

chevron_right






                        filter_none









Output:




[-12.  -8.]





 


Code #2 : 











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















# Python program explaining 


# numpy.lagder() method  


    


# importing numpy as np   


# and numpy.polynomial.laguerre module as geek  


import numpy as np  


import numpy.polynomial.laguerre as geek 


    


# Laguerre series coefficients 


s = (1, 2, 3, 4, 5)  


  


    


# using np.lagder() method  


res = geek.lagder(s, m = 2, scl = 0.5)  


  


# Resulting laguerre series 


print (res)  



















                        chevron_right







                        filter_none









Output:


[ 6.5   3.5   1.25]









    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
jana_sayantan
Check out this Author's contributed articles.
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.