Use "function" matlab

Plot the surface generated by $z=sin\{co{s}^2(x^{0\mathrm{.}5})+co{s}^2(y^{0\mathrm{.}5})\}$ in the intervals $-3x3$

and $-2y2$ using surf commands and chose an increment of $0\mathrm{.}1.$

Label the $x-,y-,$ and $z-$axes as $"x","$Y$",$ and $"$Z$."$ Include a title of the plot. Save the plot as

Problem $2.($Hint: Use semicolons to prevent Matlab from showing the large matrices or vectors.$)$