Am 25.08.2012 11:14, schrieb G B:
In the specific case of atan2, I think there's a short term solution
in the sense that atan2(y,x) can be seen as a form of atan(y/x).
Perhaps, at least temporarily, it can be treated as nested operations
for the sake of inversion which saves us the headache of dealing
separately with the 3 cases Joachim enumerates?
I agree that short-term solutions for the atan2 case are possible.
However, there's still the question how to define the concept of the
inverse for a multi-parameter function.
I don't know whether it's a pressing problem for solve() as it is today.
I'm pretty sure it's going to be relevant some time in the future, so
whatever we do now, we should at least have spend a few thoughts on the
multi-parameter case, even if it's only to reach the conclusion "we have
no clear path laid out for that".
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