$5-[20$ pts$]$ Write a MATLAB script and use and if$/$else statement to calculate $f(t)$ :

$f(t)=\{\begin{array}{ccc}2t,& if& 0t<mn\; id="EditorElement\_1800984">0</mn><mn\; id="EditorElement\_1800985">.</mn><mn\; id="EditorElement\_1800986">5</mn>\\ 4,& if& t=0\mathrm{.}5\\ t^2+2,& \text{f}\text{o}\text{r}\text{a}\text{l}\text{l}\text{o}\text{t}\text{h}\text{e}\text{r}& t\end{array}$

Test your code with different values of $t.$