Singular Manual: testPrimary

| #### D.4.27.12 testPrimary Procedure from library `primdec.lib` (see primdec_lib). Usage: testPrimary(pr,k); pr a list, k an ideal. Assume: pr is the result of primdecGTZ(k) or primdecSY(k). Return: int, 1 if the intersection of the ideals in pr is k, 0 if not Example:
    LIB "primdec.lib";
    ring  r = 32003,(x,y,z),dp;
    poly  p = z2+1;
    poly  q = z4+2;
    ideal i = p^2*q^3,(y-z3)^3,(x-yz+z4)^4;
    list pr = primdecGTZ(i);
    testPrimary(pr,i);
    ==> 1

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