That was really nice!

Perfect! That was realy nice!

@acer 

The thing I found in matlab is on the link bellow:

http://www.peteryu.ca/tutorials/matlab/image_in_3d_surface_plot_with_multiple_colormaps

Thanks

@Preben Alsholm 

Thank you very much!

@rlopez How to use dsolve comand when we have Robin boundary conditions?

@mehdi jafari  the time independent Schrodinger`s equation is in the link:

http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/scheq.html

The problem is not the equation, is the boundary condition. In fact, you have show constant boundary condiciton, wich can be solved via dsolve comand.

However, in this problem, the boundary condition is implicit:

http://www.utdallas.edu/~frensley/technical/nanomes91/node2.html

In the above link, the author suggest a discretization using a finite diference method and then use the boundary condition as another equation to the discrete problem.

What I am asking is if its possible, using only dsolve comand and some option, to solve this question.

@mehdi jafari 

We want to solve the Schrödinger's equation in one variable with a potential V(x). The solution is the function phi(x) and the boundary conditions are writen in terms of phi(0) and phi(l). These are the Robin condictions

Thanks,