Le 07/02/2011 13:05, Clemens Heuberger a écrit :
I encountered the following bug:
sage: abs(pi*I)
I*pi
I do not know how we define absolute value in Sage. Even in math in
general, I'm not sure of what means the absolute value of a complex
number. Depends on the data of a convex cone ?
I suppose that some Sage gurus will explain why abs(pi*I)=pi*I.
However as far as my knowledge in math is concerned, the "good"
generalization of abs to the complex plane is the norm.
sage: (pi*I).norm()
pi^2
This is the correct answer.
Hope it helps ...
Have a good afternoon
Laurent
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