Numerical integration: points of integration

Hello everybody: I would be interested in knowing which points Matlab gets for numerical integration in 2D space. Is it possible to know after integrations in which points Matlab has evaluated the function to obtain the integration? Thanks. Carlos

Answer 1

[John D'Errico]

So store them yourself! Nothing says you cannot do this.

Use a global variable, that accumulates each point your function was passed. Expect it to be slow, since the array will grow dynamically and cannot be preallocated since you do not know the final size. Whats the problem otherwise?

[Mike Hosea]

To know the points, that is the way. For speed and probably to tell me what I really need to know, I think I might rather "bin" it, i.e. count the number of evaluations in each rectangle of a pre-defined grid.

[John D'Errico]

Mike - Yes. I agree. It all depends on what is the exact goal.