Singular Manual: sturmquery

| #### D.12.6.4 sturmquery Procedure from library `rootsmr.lib` (see rootsmr_lib). Usage: sturmquery(h,b,i); h poly, b,i ideal Return: int: the Sturm query of h in V(i) Assume: i is a Groebner basis, b is an ordered monomial basis of r/i, r = basering. Example:
    LIB "rootsmr.lib";
    ring r = 0,(x,y),dp;
    ideal i = x4-y2x,y2-13;
    i = std(i);
    ideal b = qbase(i);
    sturmquery(1,b,i);
    ==> 4
See also: matbil; symsignature.

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