On 2014-12-04 10:33, Vincent Delecroix wrote:
It is not exactly what we want... the error message would be "absolute
value not defined for matrices".
Well, the Sage convention seems to be to generalise ArithmeticError to
include undefined mathematical operations, like factor(0). Of course,
with matrices, the difference is that's it's *never* defined, so a
TypeError might indeed be more suitable.
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