s*i*n*θ≈θ

A = \begin{bmatrix} -0.516 & 0 & 0 & 0 \\ 0 & -1.329 & -0.537 & 0 \\ 0 & 1 & 0 & 0 \\ 1 & 0 & -1.543 & 0 \end{bmatrix}, \quad B = \begin{bmatrix} 0 \\ 2.347 \\ 0 \\ 0 \end{bmatrix}