Assembly of the Mass vectors fields Matrix by $P_1$ -Lagrange finite elements in 3D using OptV0 version (see report). More...

Functions
function M =	MassVFAssembling3DP1OptV0 (nq, nme, me, volumes, Num)
	Assembly of the Mass vectors fields Matrix by -Lagrange finite elements in 3D using OptV0 version (see report).

Detailed Description

Assembly of the Mass vectors fields Matrix by $P_1$ -Lagrange finite elements in 3D using OptV0 version (see report).

Function Documentation

function M = MassVFAssembling3DP1OptV0	(	nq,
		nme,
		me,
		volumes,
		Num
	)

Assembly of the Mass vectors fields Matrix by $P_1$ -Lagrange finite elements in 3D using OptV0 version (see report).

The Mass vectors fields is given by

$\MassVF_{i,j}=\int_\DOMH \DOT{\BasisFuncTwoD_m(\q)}{ \BasisFuncTwoD_l(\q)}d(\q), \ \forall (m,l)\in\ENS{1}{3\,\nq}^2,$

where $\BasisFuncTwoD_m$ are $P_1$ -Lagrange vector basis functions.

Example

    Th=CubeMesh(10);
    Mvf=MassVFAssembling3DP1OptV0(Th.nq,Th.nme,Th.me,Th.areas,0);

Parameters

nq	total number of vertices, also denoted by $\nq$ .
nme	total number of elements, also denoted by $\nme$ .
me	Connectivity array, $4\times\nme$ array. $\me(\jl,k)$ is the storage index of the $\jl$ -th vertex of the -th tetrahedron in the array $\q$ of vertices coordinates, $\jl\in\{1,2,3,4\}$ and $k\in{\ENS{1}{\nme}}$ .
volumes	Array of volumes, $1\times\nme array$ . volumes(k) is the volume of the k-th tetrahedron.
Num	0 global alternate numbering with local alternate numbering (classical method), 1 global block numbering with local alternate numbering, 2 global alternate numbering with local block numbering, 3 global block numbering with local block numbering.

Return values

M	$3\nq\times 3\nq$ Global Mass vectors fields sparse matrix