1D Finite Element Code Using Lagrange Basis Polynomials

FEM1D_LAGRANGE, a FORTRAN90 code which sets up the matrices and vectors associated with the finite element method (FEM) solution of a boundary value problem (BVP) -u''+u=f(x), using Lagrange basis polynomials.


The computer code and data files made available on this web page are distributed under the GNU LGPL license.


FEM1D_LAGRANGE is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.

Related codes:

FEM1D, a FORTRAN90 code which applies the finite element method (FEM) to a 1D linear two point boundary value problem (BVP).


LAGRANGE_INTERP_1D, a FORTRAN90 code which defines and evaluates the Lagrange polynomial p(x) which interpolates a set of data, so that p(x(i)) = y(i).

Source Code:

Last revised on 06 July 2020.