public void TransformMatrixAndBackToStringTest()
 {
     Scientrace.NonzeroVector u, v;
     u = new Scientrace.NonzeroVector(5, 2, 4);
     v = new Scientrace.NonzeroVector(3, 2, 3);
     Scientrace.VectorTransform foo      = new Scientrace.VectorTransform(u, v);
     Scientrace.Vector          orivec   = new Scientrace.Vector(5, 1, 2);
     Scientrace.Vector          tvec     = foo.transform(orivec);
     Scientrace.Vector          tbackvec = foo.transformback(tvec);
     Assert.AreEqual(orivec.ToCompactString(), tbackvec.ToCompactString());
 }