fem1d_sample_test

fem1d_sample_test, a C code which calls fem1d_sample() to evaluate a finite element function of one argument.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Related Data and Programs:

fem1d_sample, a C code which samples a scalar or vector finite element function of one variable, defined by FEM files, returning interpolated values at the sample points.

Source Code:

• fem1d_sample_test.sh, runs all the tests.
• fem1d_sample_test.txt, the output file.

P1 is FEM data for the vector function f(x)=[ 1, x, x^2], on a grid of 11 evenly spaced nodes from -5 to 5, using piecewise constant basis functions.

• p1_fem_nodes.txt, the FEM nodes.
• p1_fem_elements.txt, the FEM elements.
• p1_fem_values.txt, the FEM nodal values.
• p1_sample_nodes.txt, the sample nodes.
• p1_sample_values.txt, the sample nodal values.

P2 is FEM data for the vector function f(x)=[ 1, x, x^2], on a grid of 11 evenly spaced nodes from -5 to 5, using piecewise linear basis functions.

• p2_fem_nodes.txt, the FEM nodes.
• p2_fem_elements.txt, the FEM elements.
• p2_fem_values.txt, the FEM nodal values.
• p2_sample_nodes.txt, the sample nodes.
• p2_sample_values.txt, the sample nodal values.