Given the following code:

$t=-10$:$0\mathrm{.}01$:$20$;

to $=-3$;

$t1=9$

$u1=$ stepfun $(t,t0$;

$u2=$ stepfun $(t,t1)$;

$p=u1-u2$;

figure $(1)$

plot $($t$,4**p,\text{'}b\text{'},$ 'Linewidth', $5)$

axis $(($:$\left[\begin{array}{cccc}-10& 20& -1& 8\end{array}\right]\}$

grid

xlabel $(\text{'}$time $t\text{'},$ 'fontsize', $16)$

ylabel $,$ 'fontsize', $16)$

title $(\text{'}$shifted rectanqular pulse', 'fontsize',$16)$

The code produces a square pulse of length $9$ and height $4.$

True

False