integral competition HP50g vs. DM42

[Thomas Okken]

(08-23-2020 02:07 PM)peacecalc Wrote:  for the estimation of accuracy of complex integrals, why there are problems? It would be enough to show that the |R(z)| < epsilon or is there something I not see? R(z) could be a kind of circle which can small enough?

I don't know. Do numerical integration schemes for real-valued functions generalize to complex-valued functions just like that? This is well outside my mathematical comfort zone.

I'm also not sure just how useful this would be. We're not talking about true complex integrals here, X would still be on a real interval, so all you're accomplishing is not having to integrate Re(f(x)) and Im(f(x)) separately.