|
|
D.4.24.8 latticeIdeal
Procedure from library normaliz.lib (see normaliz_lib).
- Usage:
- latticeIdeal(ideal I);
- Return:
- Returns the lattice ideal defined by the elements of I
which have to be binomials. The lattice ideal is
the restriction to the polynomial ring of the ideal of
the Laurent polynomial ring generated by I
- Note:
- This function requires the previous setting of an NmzFilename.
The function does not delete the written files.
Example:
| | LIB "normaliz.lib";
setNmzFilename("binomials");
ring S = 37,(u,v,w,x,y,z),dp;
ideal I = u2-v2, x2-y2, y2-vw, z2-xy;
latticeIdeal(I);
==> 1
==> 1
==> _[1]=x2-y2
==> _[2]=u2-v2
==> _[3]=-xy+z2
==> _[4]=vw-y2
|
See also:
intmat2binomials.
|
