On Nov 8, 9:20 pm, Robert Bradshaw <rober...@math.washington.edu>
wrote:
> However, I agree with the sentiment that V.sum(W) grossly violates the
> principle of least surprise as well as being of dubious merit over the
> builtin sum(...).
And note that python's builtin sum is in sage shadowed by
sum=sage.misc.functional.symbolic_sum
which does:
if hasattr(expression, 'sum'):
return expression.sum(*args, **kwds)
elif len(args) <= 1:
return sum(expression, *args)
else:
...
so the builtin sum only gets called in second place.
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