Hi all, I need a heep to solve 6 PDEs from the first order with initial and boundry conditions.

Here is the file PDE_with_IBC-BC.mwPDE_with_IBC-BC.mw

Dear all

I have a PDE and its analytical solution. I want to find the numerical solution by Finite Difference Method.

I duscratize the PDE and boundary condition and Could not able to solve them togethe.

Here is the file FEM-Nu.mw

Dear all

When may program begin the following massage appears 

kerenl connectio has been lost

Dears, When I run calculation in Maple I found an error in matrices. See the file

Where u and v are the displacement components in x and y directions respectively.