Maple 2017- question: boundary value problem

Question

I am having some trouble to solve boundary value problem on maple 2017, I suspect there is some thing wrong with the way I am using boundary conditions.

NOTE: I suppose you have to have maple in order to help. Please do not be annoyed.

This the ODE:

$ eq1 := diff(z0(x), x, x) = -z0(x)+cos(2*x) $

This is command to solve it with boundary conditions:

$ sl1 := dsolve({eq1, z0(-\frac{\pi}{4}) = 0, z0(\frac{\pi}{4}) = 0}) $

This is the output:

$ sl1 := z0(x) = \frac{(cos(x)*cos((\frac{\pi}{2})}{3*cos (\frac{\pi}{4})}-(1/3)*cos(2*x) $

First term on RHS(the fraction) should be zero. Can some one help me with this?

Answer 1

You have likely used the lowercase name pi instead of capitalized Pi.

That lowercase name has no special meaning for Maple. You want Pi instead.