#Kreyszig Problem set 2.9 Question 17
var('x')
y=function('y',x)
print desolve(diff(y,x,2)-4*y==exp(-2*x)-2*x,[y,x],ics=[0,0,0])

SageDays/Kreyszig-2.9-17 (last edited 2010-08-11 12:14:33 by belindadcunha)