triangle(9)

NAME

Triangle reference element

DESCRIPTION

The triangle reference element is

K = { 0 < x < 1 and 0 < y < 1-x }

NUMBERING

y

2
| +
| +
| +
| +
0---------1 x

IMPLEMENTATION

const size_t dimension = 2;
const Float measure = 0.5;
const size_t n_vertex = 3;
const Float vertex [n_vertex][dimension] = {

{ 0, 0 },
{ 1, 0 },
{ 0, 1 } };

const size_t n_edge = 3;
const size_t edge [n_edge][2] = {

{ 0, 1 },
{ 1, 2 },
{ 2, 0 } };

rheolef-5.89 triangle(9)