Write a Matlab function $($CircleData$.$m$)$ that takes either $3$ or $4$ arguments and returns two arrays. The arguments are the and coordinates of the center of a circle, the radius r of the circle, and the number of points n on the circle. The last argument is optional and if it is not given, assume that it is $100.$ The function should create a list of n equally$-$spaced angle values ranging from $0$ to $2\backslash$pi $.$ Then, for each angle value, the x$-$ and y$-$coordinates of a point on the circle will be

x $=+$ r cos$($angle$)$

y $=+$ r sin$($angle$)$

The function script must return the lists of x and y values in the two output arguments. What you submit should only have the function script and not any test code.

To make sure your function script is working properly, you can test your function outside of that script using the plotting features discussed in lecture. For example

$[$x$,$y$]=$ CircleData$(2,3,4)$;

plot$($x$,$y$)$;

grid on;

axis equal;