#Kreyszig Problem set 2.9 Question 11
var('x')
y=function('y',x)
print desolve(diff(y,x,2)+10*diff(y,x)+25*y==exp(-5*x),[y,x])

SageDays/Kreyszig-2.9-11 (last edited 2010-08-11 12:03:33 by belindadcunha)