To convert a polynomial to a Laguerre series, use the laguerre.poly2lag() method in Python Numpy. Convert an array representing the coefficients of a polynomial ordered from lowest degree to highest, to an array of the coefficients of the equivalent Laguerre series, ordered from lowest to highest degree.
The method returns a 1-D array containing the coefficients of the equivalent Laguerre series. The parameter pol, is a 1-D array containing the polynomial coefficients
Steps
At first, import the required library −
import numpy as np from numpy.polynomial import laguerre as L
Create an array using the numpy.array() method −
c = np.array([1, 2, 3, 4, 5])
Display the array −
print("Our Array...\n",c)
Check the Dimensions −
print("\nDimensions of our Array...\n",c.ndim)
Get the Datatype −
print("\nDatatype of our Array object...\n",c.dtype)
Get the Shape −
print("\nShape of our Array object...\n",c.shape)
To convert a polynomial to a Laguerre series, use the laguerre.poly2lag() method in Python Numpy −
print("\nResult (polynomial to laguerre)...\n",L.poly2lag(c))
Example
import numpy as np from numpy.polynomial import laguerre as L # Create an array using the numpy.array() method c = np.array([1, 2, 3, 4, 5]) # Display the array print("Our Array...\n",c) # Check the Dimensions print("\nDimensions of our Array...\n",c.ndim) # Get the Datatype print("\nDatatype of our Array object...\n",c.dtype) # Get the Shape print("\nShape of our Array object...\n",c.shape) # To convert a polynomial to a Laguerre series, use the laguerre.poly2lag() method in Python Numpy print("\nResult (polynomial to laguerre)...\n",L.poly2lag(c))
Output
Our Array... [1 2 3 4 5] Dimensions of our Array... 1 Datatype of our Array object... int64 Shape of our Array object... (5,) Result (polynomial to laguerre)... [ 153. -566. 798. -504. 120.]