sweep {n,T_1,T_2, ...,T_r}[options]swept_objectsweep {n<>,T_1,T_2, ...,T_r}[options]swept_object

The sweep connects `n` (or perhaps `n`+1) copies of
`swept_object`
in order to create a new object of higher
dimension. The `T_i` (for i between 1 and
r) are transforms.
The k'th copy of `swept_object` is produced by applying the
following transform to the original.

T_1^k thenT_2^k then ... thenT_r^k

Here `T`^k means “transform `T` applied k
times.” The original object is the zero'th copy, with k=0 and
effectively no transform applied (T^0=I, the identity
transform).

The method of connecting the copies depends on the type of
`swept_object` and on whether the closure tag
<> is present
or not.

An example of a sweep where r=2 is the Mobius figure at More to learn.