Hi,

this might be a duplicate (sorry) but I could not find this issue described 
anywhere else. I have been running the code

k=1.0
(I*k/(2*pi*5))^(6/2)

and got the result

(1.00000046096651e-4294967297*I)/pi^3

This is clearly way too small, adding CC(...) to get a numerical value does not 
resolve 
the problem. However, simply replacing 6/2 by 3 yields the correct result: 

(I*k/(2*pi*5))^(3)
result: -0.00100000000000000*I/pi^3

Did I make some stupid and obvious error or is this just a strange bug ? I am 
using 
sage 8.6 (jupyter notebook) on a linux computer (Centos 7, 64 bit). I tried 
these code 
snippets on cocalc and ran into the same problems. Friends of mine have also 
reported the 
problem on sage 8.8. 

Thanks a lot,

Florian

 

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