在Python中删除Hermite_e多项式的小尾数系数
要从Hermite_e多项式中删除小尾数系数,请在Python的Numpy中使用hermite_e.hermetrim()方法。该方法返回一个1维数组,其中删除了尾部的零。如果结果序列为空,则返回包含一个零的序列。
“Small”表示“绝对值很小”,由参数tol控制;“trailing”表示最高阶系数,例如,在[0, 1, 1, 0, 0]
中(表示0 + x + x^2 + 0*x^3 + 0*x^4
),3阶和4阶系数都会被“修剪”。参数c是一个1维数组,按照从低阶到高阶的顺序排序。参数tol是绝对值小于或等于tol的尾部元素将被删除。
步骤
首先,导入所需的库 –
import numpy as np
from numpy.polynomial import hermite_e as H
使用numpy.array()方法创建一个数组。这是一个一维数组,包含以下系数 –
c = np.array([0,5,0, 0,9,0])
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)
要从Hermit_e多项式中删除小的尾系数,可以使用Python中的hermite_e.hermetrim()方法-
print("\nResult...\n",H.hermetrim((c)))
示例
import numpy as np
from numpy.polynomial import hermite_e as H
# Create an array using the numpy.array() method
# This is the 1-d array of coefficients
c = np.array([0,5,0, 0,9,0])
# 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 remove small trailing coefficients from Hermite_e polynomial, use the hermite_e.hermetrim() method in Python Numpy.
print("\nResult...\n",H.hermetrim((c)))
输出
Our Array...
[0 5 0 0 9 0]
Dimensions of our Array...
1
Datatype of our Array object...
int64
Shape of our Array object...
(6,)
Result...
[0. 5. 0. 0. 9.]