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.]
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