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D.15.11.13 mRes

Procedure from library modules.lib (see modules_lib).

Usage:
mRes(M,n); M Module or Ideal, n integer

Return:
Resolution, minimized resolution with graded modules

Note:
n is optional, if n ist positiv only that many steps will be computed use R.dd[i]; to return the different modules as image of matrices, R Resolution i integer EXAMPLE. example mRes, shows an example

Example:
 
LIB "modules.lib";
ring r;
matrix m[1][3]=x,y,z;
Matrix M=m;
Module N=coker(M);
N;
==> cokernel | x y z |
==> 
==> 
Resolution R = mRes(N);
R;
==>  1      3      3      1      
==> r <--  r <--  r <--  r
==> 
==> 0      1      2      3      
==> 
==> 
R.dd[2];
==>      {2}  {2}  {2}
==> {1}    y    x    0
==> {1}   -z    0    x
==> {1}    0   -z   -y
==>