automatic_names("True")
y=b*e**x+c*e**(-x)
singlef=diff(y,x)
doublef=diff(y,x,2)
p=(-1)/x
q=integrate(-p)
U=e**q/x**2
Q1=integrate(U)
y2=x*Q1
y2

Kreyszig-2.1-7 (last edited 2010-12-17 06:42:49 by trss)