I have removed mark postings and homework assignment solutions (so students in current and upcoming semesters can't copy them), but I've left other things which may be of interest, such as Lecture Notes and Maple Exercises, including "Spacecurve Central".
[Computer Access]
[Mid-Term Exam]
[Final Exam]
This is the gradient vector field of a scalar field with ellipsoidal isotimic surfaces:
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Here are the Maple commands used to create this picture:
> with(plots):
> plot1:=implicitplot3d(x^2/4+y^2/9+z^2=1,
x=-2..2,y=0..3,z=-1..1):
> plot2:=implicitplot3d(x^2/4+y^2/9+z^2=4,
x=-3..3,y=0..6,z=-2..2):
> plot3:=implicitplot3d(x^2/4+y^2/9+z^2=9,
x=-6..6,y=0..9,z=-3..3):
> plot4:=gradplot3d(x^2/4+y^2/9+z^2,x=-7..7,
y=0..10,z=-4..4,arrows='THICK'):
> display3d({plot1,plot2,plot3,plot4},
orientation=[-18,81],style='WIREFRAME',
axes='FRAMED',scaling=CONSTRAINED);
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