FEM1D is a data directory which contains examples of 1D FEM files, which define a 1D finite element model.
The FEM format is a simple dataset of three files that can be used to describe a finite element model.
The finite element model is assumed to include three items:
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FEM1D, a C program which applies the finite element method to a 1D linear two point boundary value problem.
FEM1D_ADAPTIVE, a C++ program which applies the finite element method to a 1D linear two point boundary value problem using adaptive refinement to improve the solution.
FEM1D_BVP_LINEAR, a C program which applies the finite element method, with piecewise linear elements, to a two point boundary value problem in one spatial dimension.
FEM1D_NONLINEAR, a C++ program which applies the finite element method to a 1D nonlinear two point boundary value problem.
FEM1D_SAMPLE, a C++ library which evaluates a finite element function defined on an order 3 or order 6 triangulation.
FEM2D, a data directory which contains examples of 2D FEM files, three text files that describe a 2D finite element geometry;
FEM3D, a data directory which contains examples of 3D FEM files, three text files that describe a 3D finite element geometry;
ARCTAN is an example of a 1D finite element model, using 29 nodes, and piecewise linear elements, in which a scalar value is stored. The exact solution of the problem is the arctangent function. This data was computed by the FEM1D_ADAPTIVE program.
FEM1D is an example of a 1D finite element model, using 11 nodes, and piecewise linear elements, in which a scalar value is stored. This data was computed by the FEM1D_NONLINEAR program.
SIN0 is a degree 0 finite element model for SIN(PI*X) on [0,3].
SIN1 is a degree 1 finite element model for SIN(PI*X) on [0,3].
SIN2 is a degree 2 finite element model for SIN(PI*X) on [0,3].
SIN4 is a degree 4 finite element model for SIN(PI*X) on [0,3].
SIN8 is a degree 8 finite element model for SIN(PI*X) on [0,3].
You can go up one level to the DATA directory.