The following seems to run endless (WinME, M10.02 classical interface):
kappa = .89988751406074 .. 4.0);
I did not want to massage it by hand (as the fct may change and actually I
want the upperbound to be infinity). The reason can not be the slow numerics
for Bessels (as an external DLL with brute callback gives the result slowly,
but in less than 3 sec as 0.106106473481553262).
What is the reason, what to do (within Maple)?