Singular Manual: equations

| #### D.13.2.18 equations Procedure from library `gfan.lib` (see gfan_lib). Usage: equations(c); c cone equations(p); p polytope Return: bigintmat, defining equations of c resp p Note: neither unique nor complete, unless c resp p in canonical form Example:
    LIB "gfan.lib";
    intmat M1[2][2]=
    1,0,
    0,1;
    cone c1=coneViaPoints(M1);
    bigintmat E1=equations(c1);
    print(E1);
    ==>
    intmat M2[1][2]=
    1,0;
    cone c2=coneViaPoints(M2);
    bigintmat E2=equations(c2);
    print(E2);
    ==> 0,-1

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