4ti2 -- A software package for algebraic, geometric and combinatorial problems on linear spaces

output

This code allows to manage the output of the main functions of 4ti2.

Usage

./output [--options] foo

Examples

./output --binomials foo.gra

writes the Graver basis elements as binomials in 'foo.gra.bin'.

./output --0-1 foo.gra

extracts the 0-1 elements from the Graver basis elements and writes them into 'foo.gra.0-1'.

Option Effect Output file

--quiet no output is written to the screen

--binomials Write vectors as binomials.
Use 'foo.vars' to specify your own variable names. 'foo.bin'

--maple Write vectors as Maple list.
Suitable also for CoCoA, Mathematica, Macaulay2 'foo.maple'

--0-1 Extract vectors with 0-1 components only. 'foo.0-1'

--transpose Transpose matrix. 'foo.tra'

--degree List 1-norms of all vectors.

--degree n Extract all vectors of 1-norm n. 'foo.deg.n'

--positive Extract positive parts of vectors.
Corresponds to leading terms of binomials. 'foo.pos'

--3way a b c Write vectors as 3-way tables of size a x b x c. 'foo.3way'

Option	Effect	Output file
--quiet	no output is written to the screen
--binomials	Write vectors as binomials. Use 'foo.vars' to specify your own variable names.	'foo.bin'
--maple	Write vectors as Maple list. Suitable also for CoCoA, Mathematica, Macaulay2	'foo.maple'
--0-1	Extract vectors with 0-1 components only.	'foo.0-1'
--transpose	Transpose matrix.	'foo.tra'
--degree	List 1-norms of all vectors.
--degree n	Extract all vectors of 1-norm n.	'foo.deg.n'
--positive	Extract positive parts of vectors. Corresponds to leading terms of binomials.	'foo.pos'
--3way a b c	Write vectors as 3-way tables of size a x b x c.	'foo.3way'