On 21 Apr., 02:12, Ronan Lamy <[email protected]> wrote: > > Did you mean "underdetermined"?
Yes. > I *really* think solve() should return a Set, not an ill-defined ad-hoc > structure. Infinite solution sets don't necessarily have a parameter > (for instance x == tan(x)), or they could be more than one family of > solutions or more than one parameter, or the solution set could contain > families with different dimensionalities. There are a lot of possible > situations but they can all be represented by a set, because that's what > solving an equation means: finding the set of values of the variables > for which the equation holds. +1 Mathematically it is a set, so we should return a set (and not a list as currently for the onedimensional case). However, we might want to return additional information like multiplicities, this could be integrated in a subclass of a set. Vinzent -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
