Python | Numpy np.hermvander() method

With the help of np.hermvander() method, we can get the pseudo vandermonde matrix from hermite series of given degree by using np.hermvander() method.

Syntax : np.hermvander(x, deg)
Return : Return the pseudo vandermonde matrix of given degree.

Example #1 :
In this example we can see that by using np.hermvander() method, we are able to get the pseudo vandermonde matrix of hermite series by using this method.

# import numpy and hermvander
import numpy as np
from numpy.polynomial.hermite import hermvander

x = np.array([1, 2, 3, 5, 7, 11])
deg = 2

# using np.hermvander() method
gfg = hermvander(x, deg)

print(gfg)

Output :

[[ 1. 2. 2.]
[ 1. 4. 14.]
[ 1. 6. 34.]
[ 1. 10. 98.]
[ 1. 14. 194.]
[ 1. 22. 482.]]

Example #2 :

# import numpy and hermvander
import numpy as np
from numpy.polynomial.hermite import hermvander

x = np.array([5, 10, -10, -5])
deg = 3

# using np.hermvander() method
gfg = hermvander(x, deg)

print(gfg)

Output :

[[ 1.00e+00 1.00e+01 9.80e+01 9.40e+02]
[ 1.00e+00 2.00e+01 3.98e+02 7.88e+03]
[ 1.00e+00 -2.00e+01 3.98e+02 -7.88e+03]
[ 1.00e+00 -1.00e+01 9.80e+01 -9.40e+02]]