OptFEM2DP1 Toolbox  V1.2b3
Matlab/Octave Optimized P1-Lagrange Finite Element Method in 2D
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ElemStiffMatP1.m File Reference

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

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Functions

function AElem = ElemStiffMatP1 (q1, q2, q3, area)
 Computation of the element stiffness matrix for $P_1$-Lagrange finite elements.
 

Detailed Description

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

Definition in file ElemStiffMatP1.m.

Function Documentation

function AElem = ElemStiffMatP1 (   q1,
  q2,
  q3,
  area 
)

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

Example
    q1=[0;0];q2=[0;1];q3=[1;0];
    area=1/2.;
    AElem=ElemStiffMatP1(q1,q2,q3,area);
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Parameters
q1Coordinates of the first vertex in the triangle, $2\times 1$ array
q2Coordinates of the second vertex in the triangle, $2\times 1$ array
q3Coordinates of the third vertex in the triangle, $2\times 1$ array
areatriangle area
Return values
AElemElement stiffness matrix, $3\times 3$ matrix

Definition at line 17 of file ElemStiffMatP1.m.