我对此感到非常困惑。也许有人可以为我澄清结果:
import numpy as np
a = np.array([ 1.97635114,1.72790352,1.51046621,1.25543557,1.01718594,0.77378732,0.53452001,0.29627038,0.05802074,-0.18022889,-0.41847852])
e = -1.377404416
a**e
产生
array([ 0.39126903,0.47080342,0.56661974,0.73100461,0.97680242,1.42368231,2.369756,5.34193942,50.47146058,nan,nan])
[item**e for item in a]
给我
[0.39126902696026267,0.4708034172873469,0.5666197367017416,0.7310046117775049,0.9768024208132248,1.4236823077174863,2.369756002432608,5.341939422216064,50.47146057971127,nan]
但是
-0.41847852**e
收益
-3.3197780173988067
为什么numpy无法计算这两个数字的指数?