Problem Definition

logical nuniq

If true, the user is indicating that the solution of the problem is nonunique, which occurs, for example, when and the boundary conditions are Neumann everywhere. In this case, the parameters nuniqx, nuniqy, and nuniqv must also be set. Default: false

real nuniqx and nuniqy

The x and y coordinates of a point at which the solution is provided to tie down a nonunique solution. The point must be a vertex in the initial triangulation. Default: 0. for both

real nuniqv

The value of the solution at the point (nuniqx,nuniqy). Default: 0.