The octave-forge package is the result of The GNU Octave Repositry project,
which is intended to be a central location for custom scripts, functions and
extensions for GNU Octave. contains the source for all the functions plus
build and install scripts.

This is odebvp.

To approximate the solution of the boundary-value problem
  y''=p(x)*y' + q(x)*y + r(x), a<=x<=b, y(a)=alpha, y(b)=beta
by the linear finite-diffence method.

WWW: http://octave.sourceforge.net/