Singular Manual: latticeIdeal

| #### D.4.25.8 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.

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