  # Python | Numpy np.chebder () method

NumPy | Python Methods and Functions

Using the `np.chebder() ` method, we can get the differentiated value of the Chebyshev series as an array with the coordinate value using ` np.chebder () `.

Syntax: ` np.chebder (series, value) `
Return: Return an array having coordinates of series after differentiation.

Example # 1:
In this example, we can see that with ` np. chebder () ` we can get the differentiation of the Chebyshev series, and it will return an array with the coordinates of this.

 ` # NumPy import ` ` import ` ` numpy as np ` ` from ` ` numpy.polynomial ` ` import ` ` chebyshev as C ``   x = np.array ([ 1 , 2 , 3 ]) # using the np.chebder () method gfg = C.chebder (x, 2 )   print (gfg) `

Output:

` [12.] `

Example # 2:

 ` # NumPy import ` ` import numpy as np `` from numpy.polynomial import chebyshev as C   x = np.array ([ 2 , 5 , 7 , 11 ] ) # using the np.chebder () method gfg = C.chebder (x, 2 )   print (gfg) `

Output:

` [28. 264.] `