fem3d_sample, a MATLAB code which evaluates a finite element function of a 3D argument.
The current version of the program can only handle tetrahedral finite element meshes using linear basis functions.
The current version of the program uses a naive search algorithm to locate points within the mesh. It is intended that this search algorithm be replaced by a Delaunay search.
fem3d_sample ( 'fem_prefix', 'sample_prefix' )where 'fem_prefix' is the common prefix for the FEM files:
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
fem3d_sample is available in a C++ version and a FORTRAN90 version and a MATLAB version.
fem_io, a MATLAB code which reads or writes node, element and data files defining a finite element model.
fem1d_sample, a MATLAB code which samples a scalar or vector finite element function of one variable, defined by FEM files, returning interpolated values at the sample points.
fem2d_sample, a MATLAB code which samples a scalar or vector finite element function of 2 variables defined by FEM files, returning interpolated values at the sample points.
fem3d, a data directory which contains examples of 3D FEM files, three text files that describe a 3D finite element geometry;
fem3d_pack, a MATLAB code which contains utilities for 3D finite element calculations.
fem3d_project, a MATLAB code which projects a function F(X,Y,Z), given as a data, into a given finite element space of piecewise linear tetrahedral elements.
histogram_data_2d_sample, a MATLAB code which demonstrates how to construct a Probability Density Function (PDF) from a frequency table over a 2D domain, and then to use that PDF to create new samples.
histogram_pdf_sample, a MATLAB code which demonstrates how sampling can be done by starting with the formula for a PDF, creating a histogram, constructing a histogram for the CDF, and then sampling.
REJECTION_SAMPLE, a MATLAB code which demonstrates acceptance/rejection sampling.