With the help of np.chebval3d() method, we can get the array of coefficients after evaluation on (x, y, z) on chebyshev series by using np.chebval3d() method.
Syntax :
np.chebval3d(x, y, z, c)
Return : Return an array after evaluation on (x, y, z).
Example #1 :
In this example we can see that by using np.chebval3d() method, we are able to get the array of coefficients by evaluating (x, y, z) on chebyshev series.
# import numpy import numpy as np import numpy.polynomial.chebyshev as cheb # using np.chebval3d() method gfg = cheb.chebval3d((2, 5), (1, 3), (4, 8), (2, -4, 1)) print(gfg) |
Output :
[408. 784.]
Example #2 :
# import numpy import numpy as np import numpy.polynomial.chebyshev as cheb # using np.chebval3d() method gfg = cheb.chebval3d((1, 3, 5, 7), (2, 4, 8), (-10, -12), (2, -4, 1, 5, 1)) print(gfg) |
Output :
[1.04493678e+10 1.50855857e+10]
