private Matrix LocalVectorFunction(double ksi, double eta)
{
Matrix derivativeMatrix = GetLocalDerivativeMatrix(elementCurrent, ksi, eta);
Jacobian J = new Jacobian();
J.Element = elementCurrent;
Matrix VariableVectorOnElement = GetVariableVectorOnElement(elementCurrent, ksi, eta);
return(derivativeMatrix * VariableVectorOnElement * J.GetJacobianDeterminant(ksi, eta));
}
private Matrix LocalStiffnessMatrixFunction(double ksi, double eta)
{
Matrix derivativeMatrix = GetLocalDerivativeMatrix(elementCurrent, ksi, eta);
Jacobian J = new Jacobian();
J.Element = elementCurrent;
//Matrix VariableMatrixOnElement = GetVariableMatrixOnElement(elementCurrent, ksi, eta);
return(derivativeMatrix * ConstMatrix * Matrix.Transpose(derivativeMatrix) * J.GetJacobianDeterminant(ksi, eta));
}