4th order DE



*Hi,

Can anyone tell me if there are ways to solve 4th order ordinary
differential equations in maxima.  I am particularly interested
in boundary value problems rather than initial value problems.

As an example:

    ode: 'diff((1-1/2*t)*'diff(y(t),t,2),t,2)=1;
    atvalue(y(t),t=0,0);
    atvalue(y(t),t=1,0);
    atvalue('diff(y(t),t,2),t=1,0);
    atvalue('diff(y(t),t),t=0,0);

(It is concerned with bending of a beam.)

I have used Maple and MuPAD, most frequently MuPAD, and
both these programs solve such a problem easily.  But, I am
considering switching to maxima.

Thank you very much,

Esben Byskov
*

-- 
Esben Byskov, Ph.D., Dr.Techn.
Professor Emeritus of Structural Analysis
Department of Civil Engineering
Aalborg University
Sohngaardsholmsvej 57
DK-9000 Aalborg
Denmark

Phone:   +45 3963 7328
e-mail:  eb at civil.aau.dk