Question

Question #26440

Answer 1

I'm sorry, maybe I did not catch what you said, but try to write it LaTeX-ly :)

I think you want where `1/2x^n/{n!}` converges, boy it obviously converges pointwise on `RR` and uniformly on every compact in `RR` to the function 0 (you can use the Cauchy criterion for the exponential series, you know the series of that converges on `e/2`, so the succession must go to 0 in `RR`)

Finally, why is this related to approximating integrals and the Trapezoidal rule?