Hi, I'm looking at the derivatives of the logistic sigmoid as a vector space with a norm induced by the logistic density. In the attached Notebook, I have two functions: ntgl and defNtgl. which compute the indefinite and definite (-Infinity,Infinity) integrals.
As you can see from the notebook, both the indefinite integral and their limits as t->+/-Infinity of the integral are fast to compute (easy to eyeball from the indefinite integrals). The definite integrals takes MUCH longer and fail (time out) in many cases. This seems strange to me and as a newbie, I thought I would ask whether this is a common issue with perhaps a known workaround. Any thoughts would be appreciated. --Len B
