# cws-4d.x - Man Page

manual page for cws-4d.x 2.11

## Synopsis

**cws.x** *-<options>; the first option must be -w, -c, -i, -d or -h.*

## Description

This is `cws.x': create weight systems and combined weight systems.

Options: **-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 filescurrently #=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.