Vi ser at:
U =\begin{bmatrix}u_{11} & u_{12} & \cdots & u_{1n} \\ u_{21} & u_{22} & \cdots & u_{2n} \\ \vdots& \vdots & \ddots & \vdots\\ u_{n1} & u_{n2} & \cdots & u_{nn}\end{bmatrix}U^{T} = \begin{bmatrix}u_{11} & u_{21} & \cdots & u_{n1} \\ u_{12} & u_{22} & \cdots & u_{n2} \\ \vdots& \vdots ...