public void FunctionTest2()
{
SparseLinearTest.SparseTest(new Laplacian(), new SparseLaplacian());
SparseLinearTest.SparseTest(new Laplacian(0), new SparseLaplacian(0));
SparseLinearTest.SparseTest(new Laplacian(3.6), new SparseLaplacian(3.6));
}