Useful functions folder

The folder USEFUL_FUNCTIONS contains several functions used in the computation:

• create_empty_mds: Define an empty mds.

• harmonicDecomposition: Used in the point display method to visualize the harmonic content at a given point of the MANLAB diagram.

• animate_solution: Used in the point display method to animate the mesh at a given point of the MANLAB diagram.

• man_residual_fixed_amplitude: Residual used in the initialization.

• man_residual_fixed_frequency: Residual used in the initialization.

• plot_deformed_mesh: Same as in model.plot_deformed_mesh, for convenience.

In addition, a tool function set_src_path_for_NL_2D_FEM is provided to set the Matlab path. It has to be run from the NonLinearFEM folder, before running any example or computations.