$$\left. \begin{array} { l } { y = \{ \begin{array} { l } { 2 y } \\ { 601 } \end{array} \right] = \left[ \begin{array} { l } { 1 } \\ { 0 } \end{array} \right] } \\ { x ^ { 4 } } \end{array} \right.$$
$y=0\text{, }z=601\text{, }l\in \mathrm{R}$
$y\in \mathrm{R}\text{, }z=601\text{, }l=\frac{1}{2}=0.5$
