#Kreyszig Pg.108 Problem set 2.9 Question 22
var('x')
y=function('y',x)
print desolve(diff(y,x,2)+diff(y,x)+9.25*y==9.25*(4+exp(-x)),[y,x],ics=[0,7,1-2])

SageDays/Kreyszig-2.9-22 (last edited 2010-08-11 12:01:13 by S Micheal Ammal)