On 2014-12-06 05:39, kcrisman wrote:
I think in this case because
> Write the integer n as a sum of two integer squares if possible;
and it doesn't give a full list of *all* ways to do so, the ValueError
is appropriate. But if it returned a list of all such squares (warning:
don't try this at home), then an empty list would make sense. Does that
seem like a reasonable argument?
Absolutely, consider the following analogy:
sage: GF(5)(3).sqrt(extend=False)
[...]
ValueError: self must be a square
sage: GF(5)(3).sqrt(extend=False, all=True)
[]
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