PLTMG Users' Guide - Edition 8.0
Randolph E. Bank
Department of Mathematics
University of California at San Diego
La Jolla, California 92093
June, 1996
This work was supported by the Office of Naval Research
under contract N00014-89J-1440

• Contents
• Introduction
  • Problem Specification.
  • Significant Changes.
• Data Structures
  • Overview.
  • The Triangulation.
  • Fortran Functions.
  • The IP, RP, SP, and W Arrays.
• Mesh Generation
  • Overview.
  • Creating a Triangulation from a Skeleton.
  • A Posteriori Error Estimates.
  • Adaptive Mesh Refinement and Unrefinement.
    • Creating a Skeleton
  • Adaptive Mesh Smoothing.
  • Uniform Refinement.
  • Creating a Skeleton from a Triangulation.
  • Examples.
    • Creating a Triangulation
    • Adaptive Algorithms.
• Equation Solution
  • Overview.
  • Discretization, Numerical Quadrature, and Sparse Matrix Storage.
  • Continuation and the Parameter IPROB.
  • Solving Nonlinear Systems.
  • Solving Linear Systems.
    • A Symmetry-Breaking Bifurcation Problem.
  • Examples.
    • A Poisson Equation.
    • A Nonlinear Eigenvalue Problem.
• Graphics
  • Overview.
  • Subroutine TRIPLT.
    • Surface Plots.
    • Vector Plots.
    • The Parameters RMAG, CENX, and CENY.
    • The Parameters ISCALE, LINES, and NUMBRS.
    • Some Algorithmic Details.
  • Subroutine INPLT.
    • Triangle Plots.
    • Skeleton Plots.
  • Subroutine GPHPLT.
    • Displaying the IP and RP Arrays.
    • Continuation Path and Timestep History.
    • Timing Statistics.
    • Newton Iteration Convergence History.
    • Multilevel Iteration Convergence Histories.
    • Error Estimates.
    • Other Convergence Histories.
• Test Driver
  • Overview.
  • Terminal Mode
  • X-Windows Mode.
  • Batch Mode.
  • Array Dimensions and Initialization.
  • Reading and Writing Files.
  • Journal Files.
    • X-Windows Interface.
  • Subroutine USRCMD.
  • Subroutine GDATA.
  • Machine Dependent Routines.
    • Timing Routine.
    • Graphics Interface.
• Test Problems
  • Overview.
  • Test Problem CIRCLE.
  • Test Problem SQUARE.
  • Test Problem DOMAINS.
  • Test Problem NACA.
  • Test Problem JCN.
  • Example Journal Files.
• References
• Index
• About this document ...