在Python中返回拉盖尔多项式系数的一维数组的缩放伴随矩阵
要返回一维拉盖尔多项式系数数组的缩放伴随矩阵,请使用Python Numpy中的laguerre.lagvander3d()函数。当c是一个基础拉盖尔多项式时,拉盖尔多项式的常规伴随矩阵已经是对称的,因此不需要进行缩放。
返回维度为(deg, deg)的伴随矩阵。参数c是从低到高阶排序的拉盖尔级数系数的一维数组。
步骤
首先,导入所需的库−
import numpy as np
from numpy.polynomial import laguerre as L
创建一个一维系数数组 –
c = np.array([1, 2, 3])
显示数组 –
print("Our Array...\n",c)
检查尺寸-
print("\nDimensions of our Array...\n",c.ndim)
获取数据类型-
print("\nDatatype of our Array object...\n",c.dtype)
获取形状 –
print("\nShape of our Array object...\n",c.shape)
要返回Laguerre多项式系数的缩放伴随矩阵的一维数组,请使用Python Numpy中的laguerre.lagvander3d()函数。
print("\nResult...\n",L.lagcompanion(c))
示例
import numpy as np
from numpy.polynomial import laguerre as L
# Create a 1D array of coefficients
c = np.array([1, 2, 3])
# 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 return the scaled companion matrix of a 1-D array of Laguerre polynomial coefficients, use the laguerre.lagvander3d() in Python Numpy
print("\nResult...\n",L.lagcompanion(c))
输出
Our Array...
[1 2 3]
Dimensions of our Array...
1
Datatype of our Array object...
int64
Shape of our Array object...
(3,)
Result...
[[ 1. -0.33333333]
[-1. 4.33333333]]