#Kreyszig Pg.107 Problem set 2.9 Question 10
var('x')
y=function('y',x)
print desolve(diff(y,x,2)-diff(y,x)-(3/4)*y==21*sinh(x),[y,x])

SageDays/Kreyszig-2.9-10 (last edited 2010-08-11 11:44:59 by S Micheal Ammal)