MassMatrix

Theory

$$\int_{\Omega } N^{I} N^{J}d\Omega$$ $$\int_{\Omega } \rho N^{I} N^{J}d\Omega$$

Constructor methods

!!! note "MassMatrix"

$$\int_{\Omega } N^{I} N^{J}d\Omega$$

You can learn more about this in

• [[MassMatrix_test_1]] for [[ReferenceLine_]] Line2

• [[MassMatrix_test_2]] for [[ReferenceLine_]] Line3

• [[MassMatrix_test_3]] for mixed FEM type, Line2 and Line3 [[ReferenceLine_]]

• TODO add examples for creating mass matrix for triangle3 and triangle6 and 3D elements.