Function plots

We can plot a function us$$ng the command fplot$($f$,$limit$)$ as the following:

fplot $($@cos$,[0,2*$pi$])$

Or define an anonymous function first, then use fplot :

Exercise $5$

First, use fplot to plot the following function for $x=-6$ to $6$

$y=e^{-\frac{x}{10}}cos(\frac{x}{3})$

On the same graph, plot $y$ with a step size $0\mathrm{.}02$ for $x=6$ to $10$ use the plot function. $($Hint: use the hold on statement$).$