Python Numpy np.leg2poly()用法及代码示例

np.leg2poly()方法用于将Legendre级数转换为多项式。

用法： np.leg2poly(c)

参数：

c :[array_like] 1-D arrays of legendre series coefficients ordered from low to high.

返回：[ndarray]包含等效多项式系数的一维数组。

代码1：

# Python program explaining 
# numpy.leg2poly() method  
    
# importing numpy as np   
# and numpy.polynomial.legendre module as geek  
import numpy as np  
import numpy.polynomial.legendre as geek 
    
# Input legendre series coefficients 
  
c = np.array([0.1, 0.2, 0.3, 0.4, 0.5])  
     
# using np.leg2poly() method  
res = geek.leg2poly(c)  
  
# Resulting equivalent polynomial series coefficient 
print (res)

输出：

[ 0.1375 -0.4    -1.425   1.      2.1875]

代码2：

# Python program explaining 
# numpy.leg2poly() method  
    
# importing numpy as np   
# and numpy.polynomial.legendre module as geek  
import numpy as np  
import numpy.polynomial.legendre as geek 
    
# Input legendre series coefficients 
  
c = ( 1, 2, 3, 4, 5) 
     
# using np.leg2poly() method  
res = geek.leg2poly(c)  
  
# Resulting equivalent polynomial series coefficient 
print (res)

输出：

[  1.375  -4.    -14.25   10.     21.875]

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注：本文由纯净天空筛选整理自jana_sayantan大神的英文原创作品 Python | Numpy np.leg2poly() method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。