zsi - Sum and Intersection

Command Line

zsi [Options] Space1 Space2 Sum Int 

Options

Standard options, see Standard Command Line Options

Space1

First space.

Space2

Second space.

Sum

Sum.

Int

Intersection.

Input Files

Space1

First space.

Space2

Second space.

Output Files

Sum

Sum.

Int

Intersection.

Description

This program reads in two spaces from Space1 and Space2 and writes out their sum and intersection, in semi-echelon form, to Sum and Int, respectively. The input files must be matrices over the same field and with the same number of columns. They need not be in echelon form.

There must be enough memory to hold two copies of each of the two spaces at the same time.