x = var('x')
y = function('y',x)
deq1 = diff(y,x,3)-5*diff(y,x,2)-diff(y,x)-5==0
soln = desolve_laplace(deq1 ,  [y,x] , ics=[5,0,125])
soln

Kreyszig-2.14-15-U (last edited 2010-12-18 07:34:33 by harsha)