@Test
public void testNearlySingular(){
DenseMatrix64F A = new DenseMatrix64F(3,3, true, 1, 2, 3, 2, 4, 6.1, 4, 4, 0);
LUDecomposition alg = create(3,3);
assertTrue(alg.decompose(A));
assertFalse(alg.isSingular());
}
/**
* Checks to see how it handles getLower getUpper functions with and without