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nd_gr, nd_gr_trace (option)

nd_gr(...[|opt,opt,...])
nd_gr_trace(...[|opt,opt,...])
nd_weyl_gr(...[|opt,opt,...])
nd_weyl_gr_trace(...[|opt,opt,...])
:: グレブナー基底計算に関する種々のオプションの説明
opt
key=value なるオプション設定
return
オプションにより異なる
[0] C=[c3*c2*c1*c0-1,((c2+c3)*c1+c3*c2)*c0+c3*c2*c1,...]
[1] D=nd_gr_trace(C,[c0,c1,c2,c3,c4],0,1,0|gentrace=1,gensyz=1)$
[2] D[0];
[c0+c1+c2+c3,-c1^2-2*c3*c1-c3^2,...]
[3] D[2];
[[[0,0,1],[1,1,1],[2,2,1],[3,3,1]],[4,[[1,2,(1)*<<0,0,0,0>>,1],...]
[4] D[6];
[[-1,[[1,0,(1)*<<0,0,2,4>>,1],[1,6,(-1)*<<1,0,0,0>>,1],...]
参照
@xref{nd_gr}, @xref{nd_gr_trace}


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