Maxima does not take into a account a constant part of an integrand when doing the Laplace transform of bessel_y(v,a*t) where v is an integer order.
The symbol CONST is missing in the following result:
(%i5) ratsimp(specint(exp(-s*t)*CONST*t^2*bessel_y(1,t),t));
(%o5) (3*s*log((sqrt(s^2+1)+s)/(sqrt(s^2+1)-s))+sqrt(s^2+1)*(2*s^2-4))
/(%pi*sqrt(s^2+1)*(s^4+2*s^2+1))
The error is in the routine f2p105v2cond. The constant part is extracted from the variable l but not multiplied to the result of the Laplace transform.
Dieter Kaiser
Dieter Kaiser
2009-09-26
Fixed in hypgeo.lisp revision 1.66. Closing this bug report.
Dieter Kaiser
Dieter Kaiser
2009-09-26