Complex floating issue

[arshad]

Can anyone make a look to following code why it cant calculate complex numbers in the defined arrray.

import numpy as np

n=5
alpha = 0.7
A=np.zeros([n+1,n+1])
B=np.zeros([n+1])
#sum=0
for i in range(n+1):
    for j in range(n+1):
        A[i][j]=(i-j)**(alpha)
            
        
print(A) 

---------------------------------------------------------------------------

Error:
TypeError                                 Traceback (most recent call last)
<ipython-input-20-265607fc02b7> in <module>
      8 for i in range(n+1):
      9     for j in range(n+1):
---> 10         A[i][j]=(i-j)**(alpha)
     11 
     12 

TypeError: can't convert complex to float