如何在 Python 中为一个拉盖尔级数添加另一个拉盖尔级数


若要将一个拉盖尔级数添加到另一个拉盖尔级数中,请使用 Python Numpy 中的 polynomial.laguerre.lagadd() 方法。该方法返回一个数组,表示它们和的拉盖尔级数。

返回两个拉盖尔级数 c1 + c2 的和。参数是有序从最低次项到最高次项的系数序列,即 [1,2,3] 表示级数 P_0 + 2*P_1 + 3*P_2。参数 c1 和 c2 是 1 维从低到高有序的拉盖尔级数系数数组。

步骤

首先,导入所需的库 -

import numpy as np
from numpy.polynomial import laguerre as L

创建拉盖尔级数系数的 1 维数组 -

c1 = np.array([1,2,3])
c2 = np.array([3,2,1])

显示系数数组 -

print("Array1...\n",c1)
print("\nArray2...\n",c2)

显示数据类型 -

print("\nArray1 datatype...\n",c1.dtype)
print("\nArray2 datatype...\n",c2.dtype)

检查两个数组的维度 -

print("\nDimensions of Array1...\n",c1.ndim)
print("\nDimensions of Array2...\n",c2.ndim)

检查两个数组的形状 -

print("\nShape of Array1...\n",c1.shape)
print("\nShape of Array2...\n",c2.shape)

若要将一个拉盖尔级数添加到另一个拉盖尔级数中,请使用 polynomial.laguerre.lagadd() 方法 -

print("\nResult (sum)....\n",L.lagadd(c1, c2))

示例

import numpy as np
from numpy.polynomial import laguerre as L

# Create 1-D arrays of Laguerre series coefficients
c1 = np.array([1,2,3])
c2 = np.array([3,2,1])

# Display the arrays of coefficients
print("Array1...\n",c1)
print("\nArray2...\n",c2)

# Display the datatype
print("\nArray1 datatype...\n",c1.dtype)
print("\nArray2 datatype...\n",c2.dtype)

# Check the Dimensions of both the arrays
print("\nDimensions of Array1...\n",c1.ndim)
print("\nDimensions of Array2...\n",c2.ndim)

# Check the Shape of both the arrays
print("\nShape of Array1...\n",c1.shape)
print("\nShape of Array2...\n",c2.shape)

# To add one Laguerre series to another, use the polynomial.laguerre.lagadd() method in Python Numpy
# The method returns an array representing the Laguerre series of their sum.
print("\nResult (sum)....\n",L.lagadd(c1, c2))

输出

Array1...
[1 2 3]

Array2...
[3 2 1]

Array1 datatype...
int64

Array2 datatype...
int64

Dimensions of Array1...
1

Dimensions of Array2...
1

Shape of Array1...
(3,)

Shape of Array2...
(3,)

Result (sum)....
[4. 4. 4.]

更新于: 02-Mar-2022

111 次浏览

开启您的职业生涯

完成课程获得认证

开始
广告