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Data Structures

ITNODE Array Definitions


ITNODE for triangulation
array entry definition
ITNODE(1,I) first vertex number
ITNODE(2,I) second vertex number
ITNODE(3,I) third vertex number
ITNODE(4,I) reserved for parallel processing
ITNODE(5,I) element label
ITNODE for skeleton
array entry definition
ITNODE(1,I) first vertex number
ITNODE(2,I) first edge number
ITNODE(3,I) congruent region number
ITNODE(4,I) reserved for parallel processing
ITNODE(5,I) region label

IBNDRY Array Definitions


IBNDRY Array Definition
array entry definition
IBNDRY(1,I) first endpoint number
IBNDRY(2,I) second endpoint number
IBNDRY(3,I) curved edge switch
IBNDRY(4,I) edge type
IBNDRY(5,I) reserved for parallel processing
IBNDRY(6,I) reserved for parallel processing
IBNDRY(7,I) edge label
Edge Type Definitions
IBNDRY(3,I) edge type
0 Straight edge
1 Curved edge - circular arc
−K Curved edge - parametric
Curverd Edge Types
IBNDRY(4,I) curved edge type
2 Dirichlet boundary
1 natural boundary
0 internal
−Klinked with edge K
3, 4, 5 reserved for parallel processing

SF Array Definitions


SF for circular arc
array entry definition
SF(1,I) center coordinate xc
SF(2,I) center coordinate yc
SF for parametric curve
array entry definition
SF(1,I) parametric coordinate s1
SF(2,I) parametric coordinate s2

ITDOF Array Definitions


array entry definition
ITDOF(1,I) degree of freedom for vertex ν1
ITDOF(2,I) degree of freedom for vertex ν2
ITDOF(3,I) degree of freedom for vertex ν3
ITDOF(4,I) ± first degree of freedom for edge ϵ1
ITDOF(5,I) ± first degree of freedom for edge ϵ2
ITDOF(6,I) ± first degree of freedom for edge ϵ3
ITDOF(7,I) first interior degree of freedom for element tI
ITDOF(8,I) polynomial degrees for element tI

GF Array Definitions


problem 1 2 3 4 5 6 7
simple pde u (ud) (ω)
obstacle problem u (ω)
continuation problem u u0 · u · u0 ψr ψl (ω)
parameter identification u v uλ (ω)
distributed control u v λ (ω)

IPATH Array Definitions


array entry root root/leaf internal leaf
IPATH(1,I)neighbor neighbor neighbor neighbor
IPATH(2,I)child -edge child -edge
IPATH(3,I)vertex 1 vertex 1
IPATH(4,I)vertex 2 vertex 2
IPATH(5,I)± edge ± edge
IPATH(6,I)degree degree

Reset Window Commands


Parameters associated with n command
Name Alias Type Value
vname n short maximum of 6 characters
alias a short maximum of 2 characters
vtype t short i (int), r (real), s (short), l (long), f (file)
index i int pointer to IU, RU, SU
Parameters associated with s command
Name Alias Type Value
vname n short variable name
value v - depends on vname
label l long label associated with value in radio buttons