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Mixed differentials #137
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Thinking about it there is no way to get them to discretize at present, sorry. I will add this to known limitations. We can eventually support this, but don't expect it until after v1.0. Though I invite you to try an auxiliary variable. |
Wait, can't I just add a new unknown function that represents the first derivative wrt one of the state space variables, and add an equation for it? |
Actually yes, good point! Let me know if that works. |
I fell into the same issue. Trying to see if a workaround with auxiliary variables can work. |
#145 related |
Do I understand correctly that right now it's not possible to use second order mixed derivatives when defining the equation to solve but one has to introduce an auxiliary variable?
If I modify slightly the Brusselator example as this:
I get the following error:
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