在 Python 中将一个切比雪夫级数加到另一个级数中


若要将一个切比雪夫级数加到另一个级数中,请使用 Python Numpy 中的 polynomial.chebyshev.chebadd() 方法。该方法返回一个表示其和的切比雪夫级数的数组。返回两个切比雪夫级数 c1 + c2 的和。参数是从低阶到高阶排列的系数序列,即,[1,2,3] 表示级数 T_0 + 2*T_1 + 3*T_2。参数 c1 和 c2 是从低到高排列的切比雪夫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 chebyshev as C

创建切比雪夫级数系数的一维数组:

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)

检查两个数组的维数:

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)

若要将一个切比雪夫级数加到另一个级数中,请使用 Python Numpy 中的 polynomial.chebyshev.chebadd() 方法:-

print("\nResult (sum)....\n",C.chebadd(c1,c2))

示例

Open Compiler
import numpy as np from numpy.polynomial import chebyshev as C # Create 1-D arrays of Chebyshev 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 Chebyshev series to another, use the polynomial.chebyshev.chebadd() method in Python Numpy print("\nResult (sum)....\n",C.chebadd(c1,c2))

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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: 28-2-2022

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