OptFEM2D Toolbox for Matlab  V1.2b1
Matlab/Octave Optimized P1-Lagrange Finite Element Method in 2D
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ElemMassMatP1.m File Reference

Computation of the element mass matrix for $P_1$-Lagrange finite elements. More...

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Functions

function AElem = ElemMassMatP1 (area)
 Computation of the element mass matrix for $P_1$-Lagrange finite elements.
 

Detailed Description

Computation of the element mass matrix for $P_1$-Lagrange finite elements.

Definition in file ElemMassMatP1.m.

Function Documentation

function AElem = ElemMassMatP1 (   area)

Computation of the element mass matrix for $P_1$-Lagrange finite elements.

Example
    area=1/2.;
    AElem=ElemMassMatP1(area);

OptFEM2DP1 [V1.2b1] - Copyright (C) 2013 CJS (LAGA)

This file is part of OptFEM2DP1. OptFEM2DP1 is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

OptFEM2DP1 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Parameters
areatriangle area (double)
Return values
AElemElement mass matrix, $3\times 3$ matrix (double)

\[AElem=\frac{area}{12}\left( \begin{array}{ccc} 2 &1 &1 \\ 1 &2 &1 \\ 1 &1 &2 \end{array} \right)\]

Definition at line 17 of file ElemMassMatP1.m.