Due Thurs 12 Sep
Maple ploting, Staple your plots together.

All plots need to have
1) Your name as part of the title (add titles with the options like)
plot3d(sin(x)*sin(y),x=-Pi..Pi,y=-Pi..Pi,title=`the Good Doctor plots sin(x)sin(y)`);
(note the use of backquotes(`) and not quotes(')).
2) Labeled axises (there are several to choose from: framed, boxed, normal, and
see the label option to plot3d)
3) rotate the plot to a _good_ point of view.

First plot is a 2D graph of the three sin functions sin(x), sin(2*x) and
sin(3*x) on the same plot. Hint ?plot and group the functions via
{f(x),g(x),h(x)}.

the rest are 3D plots. load with the command with(plots);

Second plot is the sin(x)*sin(y) plot above. Change the picture so it
has `patches' rather than the default wireframe.

Third plot is an implicitplot3d of problem 29 in section 11.6

The fourth plot is sin(x*y) [0,2pi]x[0,2pi], here you need to increase
the number of sample points maple uses to draw the picture. Hint
try grid=[10,10], grid=[20,20] etc.

The fifth and final plot is to produce a good patch with contour plot
of a saddle surface, be sure to check both plot3d and implicitplot3d
before making your selection.