A capsule is a term coined here for a stadium of revolution, i.e., a cylinder with two hemispherical caps on either end.
The capsule is implemented in the Wolfram Language as CapsuleShape[
x1, y1, z1
, 
x2,
y2, z2
, r].
A capsule with cap radius 
and cylinder height 
has volume
 |
and surface area
 |
