Recent content by Fabrice23

JJacquelin: Actually my plot shows BesselJ(n, eta)^2 , What I don't get, why is the max value of BesselJ(n, eta)^2 rougly around eta? Is there a way to describe the oscillating nature of the besselfunction because I'm interested in finding values that a 0.8*J0(eta)>Jn(eta)? (at the moment i use...

Yes, I'mean J(n,n) n-->large (inf) (or take a look at http://literature.agilent.com/litweb/pdf/5954-9130.pdf pic. 23 d) for large values the besselfunction starts to increase (Jn(n-->eta)) and than plunges rapidly but who can I explain that the values increase? I plotted J(n,eta=2000)...

How can I show that a first-degree Besselfunction a la Jn=Bessel(n,eta) for large etas always lead to something like a bathtub? I.e. how can I show that J(n=eta) produces sth like a overshoot? I would really appreciate every idea.