5.1 Features

In brief, Femlisp has the following features:

• Unstructured grids in arbitrary space dimensions n \geq 0.
• Cells can be arbitrary products of simplices.
• Isoparametric and non-parametric cells
• Lagrange finite elements of arbitrary order
• Local and anisotropic mesh refinement
• Coupled problems on different-dimensional domain parts
• General variational formulation of PDE systems
• Several special PDE types:
  • Convection-diffusion-reaction
  • Elasticity
  • Navier-Stokes
• Time-dependent problems using Rothe's method
• Geometric and algebraic multigrid methods
• Graphics (using Data Explorer, Gnuplot)
• Interactive environment