Create a mesh using 30 elements for-10 < x < 10, and 60 elements for -5 z = x/8+y²/9-8xy
v = cos³(x)sin^8(y)
On the plot: Change the grid color to a solid color of your choosing. Change the colormap to a non-default collection of colors. Include axis labels and a title. Change the font for both to 16 point.