Python | Numpy np.lagmul()方法
原文:https://www . geesforgeks . org/python-numpy-NP-lag mul-method/
**np.lagmul()**法是将一个拉盖尔级数相乘得到另一个。它返回两个拉盖尔系列和c1 * c2.的乘积
语法:
np.lagmul(c1, c2)参数: c1、C2:【array _ like】从低到高排序的拉盖尔级数系数一维数组。返回:【ndarray】代表它们乘积的拉盖尔级数系数。
代码#1 :
# Python program explaining
# numpy.lagmul() method
# importing numpy as np
# and numpy.polynomial.laguerre module as geek
import numpy as np
import numpy.polynomial.laguerre as geek
# Laguerre series coefficients
s1 = (2, 4, 8)
s2 = (1, 3, 5)
# using np.lagmul() method
res = geek.lagmul(s1, s2)
# Resulting laguerre series
print (res)
Output:
[ 54\. -86\. 266\. -348\. 240.]
代码#2 :
# Python program explaining
# numpy.lagmul() method
# importing numpy as np
# and numpy.polynomial.laguerre module as geek
import numpy as np
import numpy.polynomial.laguerre as geek
# Laguerre series coefficients
s1 = (10, 20, 30, 40, 50)
s2 = (2, 4, 6, 8, 10)
# using np.lagmul() method
res = geek.lagmul(s1, s2)
# Resulting laguerre series
print (res)
Output:
[ 1100\. -1600\. 10400\. -36000\. 90600\. -152400\. 169400\. -112000.
35000.]
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