Torsten
Posts:
1,639
Registered:
11/8/10


Re: Warning: Explicit integral could not be found.
Posted:
Jun 26, 2013 2:56 AM


"Torsten" wrote in message <kqe218$49a$1@newscl01ah.mathworks.com>... > "Ferra " <ferra.xu@yahoo.com> wrote in message <kqdfvu$psn$1@newscl01ah.mathworks.com>... > > Hi > > > > I'm trying to solve this integration but it gives me this error: > > Warning: Explicit integral could not be found. > > > > syms a b > > Q = (1/(2*pi*lams)) * exp(  (a^2 + b^2)/(2*lams)); > > q = int(int(Q,b,0,sqrt((lams^2)  (a^2))),a,0,lams); > > Use numerical integration for the function received by the inner integral. > > Best wishes > Torsten.
Or much better: Perform integration in polar coordinates.
Best wishes Torsten.

