These functions are all specifically written for use in calculus. The
list below gives the names of the procedures we will be using, as well
as brief descriptions. Maple `help` screens are available for all
of these functions, so refer to them for further examples.

- VDiff
- Differentiates vector-valued functions.
- VPlot
- Plots vector-valued functions in two and three dimensions.
- VMag
- Computes the magnitude of a vector.
- ParamPlot
- Animates parametric curves in two dimensions.
- ParamPlot3D
- Animates parametric curves in three dimensions.
- Speed
- Computes the speed of a particle moving on a path defined
by a vector-valued function .

Wed Mar 20 12:45:49 EST 1996