Python | Numpy np.chebval2d() method

Python | Numpy np.chebgrid2d() method

Last Updated : 11 Nov, 2019

With the help of np.chebgrid2d() method, we can get the array of coefficients after evaluation the chebyshev series on cartesian product of x and y by using np.chebgrid2d() method.

Syntax : np.chebgrid2d(x, y, c) Return : Return an array after evaluation on (x, y).

Example #1 : In this example we can see that by using np.chebgrid2d() method, we are able to get the array of coefficients by evaluating the chebyshev series on the cartesian product of x and y.

Python3 1=1

# import numpy
import numpy as np
import numpy.polynomial.chebyshev as cheb

# using np.chebgrid2d() method
gfg = cheb.chebgrid2d((2, 5), (1, 3), (2, -4, 1))

print(gfg)

Output :

[32. 94.]

Example #2 :

Python3 1=1

# import numpy
import numpy as np
import numpy.polynomial.chebyshev as cheb

# using np.chebgrid2d() method
gfg = cheb.chebgrid2d((1, 3, 5, 7), (2, 4, 8), (2, -4, 1, 5, 1))

print(gfg)

Output :

[719680. 6486180. 52831708.]

Python | Numpy np.chebval2d() method

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