cws.x, cws-<num>d.x - create weight systems and combined weight systems.

**cws.x** *-<options>*
The cws-<num>d.x variant programs, where <num> is one of 4, 5, 6 and
11 work in different dimensions ; cws.x defaults to dimension 6.

Beware: the first option must be -w, -c, -i, -d or -h.

**-h**
- print this information

**-f**
- use as filter; otherwise parameters denote I/O files

**-w**# [L H] make IP weight systems for #-dimensional
polytopes.
- For #>4 the lowest and highest degrees L<=H are
required.

**-r**/-t make reflexive/transversal weight systems
(optional).

**-c**#
- make combined weight systems for #-dimensional polytopes.
For #<=4 all relevant combinations are made by default, otherwise the
following option is required:

**-n[**#] followed by the names wf_1 ... wf_# of weight
files

- currently #=2,3 are implemented.

- [-t] followed by # numbers n_i specifies the CWS-type,
i.e.

- the numbers n_i of weights to be selected from wf_i.
Currently all cases with n_i<=2 are implemented.

**-i**
- compute the polytope data M:p v [F:f] N:p [v] for all IP
CWS, where p and v denote the numbers of lattice points and vertices of a
dual pair of IP polytopes; an entry F:f and no v for N indicates a
non-reflexive `dual pair'.

**-d**#
- compute basic IP weight systems for #-dimensional reflexive
Gorenstein cones;

**-r**#
- specifies the index as #/2.

**-2**
- adjoin a weight of 1/2 to the input weight system.

**-N**
- make CWS for PPL in N lattice.

A complete manual is available here : http://arxiv.org/abs/1205.4147