S = Dcs_schol.cs_schol(order, dcs); if (S == null) { throw new IllegalArgumentException("Exception occured in cs_schol()");
S = Dcs_schol.cs_schol(order, dcs); if (S == null) { throw new IllegalArgumentException("Exception occured in cs_schol()");
return (false); /* check inputs */ n = A.n; S = Dcs_schol.cs_schol(order, A); /* ordering and symbolic analysis */