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
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.]
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