# P. 654, line 1, Equation (13.23)

${\displaystyle \left[{\begin{array}{cc}{\dot {x}}\\-{\dot {x}}+2x-x^{2}\end{array}}\right]=\left[{\begin{array}{c}0\\0\end{array}}\right]\qquad \Longleftrightarrow \qquad \left[{\begin{array}{c}x\\{\dot {x}}\end{array}}\right]=\left[{\begin{array}{c}0\\0\end{array}}\right],\left[{\begin{array}{c}2\\0\end{array}}\right].}$