public void UnitMatrixConversions()
{
UnitMatrix I = UnitMatrix.OfDimension(3);
SquareMatrix A = I.ToSquareMatrix();
Assert.IsTrue(I == A);
A[0, 1] += 2.0;
Assert.IsTrue(I != A);
SymmetricMatrix B = I.ToSymmetricMatrix();
Assert.IsTrue(I == B);
B[0, 1] += 2.0;
Assert.IsTrue(I != B);
DiagonalMatrix C = I.ToDiagonalMatrix();
Assert.IsTrue(I == C);
C[2, 2] -= 1.0;
Assert.IsTrue(I != C);
}