betti Matrix -- display of the degrees of a map

betti Matrix -- display of the degrees of a map

Synopsis:

Usage: n = betti f

Function: betti -- display degrees

Input:

f, an instance of class Matrix.

Output:

n, an instance of class Net: a net displaying the degrees of the generators of the source and target modules of f.

The display ignores the degree of the map itself.

For an explanation of the display, see (betti, ChainComplex).

Code:

     -- ../../../Macaulay2/m2/chaincomplexes.m2:505
     betti Matrix := f -> betti chainComplex f