## Program Bravais_grp

### Usage

Bravais_grp 'file'

file: bravais_TYP containing the finite unimodular group G.
### Description

Calculates generators of the Bravais group B(G) of G. If
the space of G-invariant quadratic forms is given in 'file',
it relies on its correctness and echoes it in the
output. Otherwise it is calculated as well.
### Remarks

See also for Aut_grp (for forms without a group in file).
### Examples

- Do two given groups have Z-equivalent copies which lie in a
finite unimodular group?