Subdirectories
1D
Problems demonstrating the use of one-dimensional geometries.
3D_DOMAINS
Problems relating to the construction of 3D domains.
CONSTRAINTS
Problems demonstrating the use of INTEGRAL CONSTRAINTS.
DISCONTINUOUS VARIABLES
Problems demonstrating the use of variable discontinuities at region boundaries.
IMPORT-EXPORT
Problems demonstrating the transfer of data to and from other applications or FlexPDE problems.
MESH_CONTROL
Problems demonstrating methods of controlling mesh density.
Miscellaneous Problems
3D_INTEGRALS.PDE
Demonstrates some of the forms of integrals over selected subregions and surfaces in three dimensions.
3D_PLOTON.PDE
Shows various uses of the "ON" qualifier in plot statements.
ACADSAMPLE.DWG and ACADSAMPLE.DXF
These files illustrate the DXF import facility of FlexPDE. Click on IMPORT, then DXF and finally on ACADSAMPLE.DXF. You can view the DWG file that generates this DXF file if you have AUTOCAD.
ARRAYREPEAT.PDE
Shows the use of ARRAY definitions and REPEAT loops to build repeated boundary features.
BATCH.PDE
Shows the use of the Batch processing facility.
FILLET.PDE
Illustrates the use of the FILLET command to round corners.
FITWEIGHT.PDE
Shows the use of spatially-varying weights in the FIT function.
FUNCDEF.PDE
Illustrates the use of Parameterized definitions (Functions).
FUNTEST.PDE
Illustrates and tests the various mathematical functions available in FlexPDE.
GRIDFUNC.PDE
Illustrates the use of Parameterized definitions (Functions) in generation of domain outlines.
HEATERSSI.PDE
Shows the use of a GLOBAL VARIABLE in a steady-state control application.
HEATERTI.PDE
Shows the use of a GLOBAL VARIABLE in a time-dependent control application.
IFTHEN.PDE
Shows the use of the IF…THEN…ELSE construct.
LUMP.PDE
Shows the use of the LUMP function.
PLOTTEST.PDE
Shows various forms of the plot commands.
POLAR.PDE
Shows the use of functional definition to apply polar-coordinate derivatives in a cartesian system.
PRINTEST.PDE
Shows use of the PRINT modifier in various PLOT commands (Superceded by EXPORT).
REPEAT.PDE
Illustrates the use of the REPEAT loop to build repeated features in domain boundaries.
SPACETIME1.PDE
Illustrates the use of FlexPDE to solve an initial value problem of 1-D transient heatflow as a boundary-value problem.
SPACETIME2.PDE
A version of SPACETIME1.PDE with varying material properties.
SPLINE_BDRY.PDE
Shows the use of spline-interpolated boundary curves.
STAGE_GEOM.PDE
Illustrates the use of STAGED geometry.
STAGE_VS.PDE
Shows use of the VS qualifier to change the abcissa of a History plot.
STAGES.PDE
Shows use of the STAGES facility to build parameter studies.
SUM.PDE
Demonstrates the use of the SUM function.
SURFACE_FIT.PDE
Illustrates the use of FlexPDE in a data fitting application.
SWAGETEST.PDE
Illustrates the use of the SWAGE and RAMP functions.
TBESSEL.PDE
Shows behavior of time integration algorithm in integrating Bessel's equation.
TINTEGRAL.PDE
Illustrates use of the TINTEGRAL function in time-dependent problems.
UFUNTEST.PDE
Shows use of the unit functions USTEP, URAMP and UPULSE.
VFUNTEST.PDE
Shows use of the vector functions.