It is possible to formulate an event function, where the current time and the current y value. Of course, it is possible to pass additional parameters to perform other comparisons. For example, I could pass the (diff)-function I integrate and formulate a stopping event based on a differential value.
The question is: how to formulate a stopping event based on the current integral value?
I. e.: The integrator has to proceed until a certain area under the calculated t-y values is reached.