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D.5.4.11 vwfiltProcedure from library
Example: LIB "gaussman.lib"; ring R=0,(x,y),ds; poly t=x5+x2y2+y5; vwfilt(t); → [1]: → _[1]=-1/2 → _[2]=-3/10 → _[3]=-1/10 → _[4]=0 → _[5]=1/10 → _[6]=3/10 → _[7]=1/2 → [2]: → 2,1,1,1,1,1,0 → [3]: → 1,2,2,1,2,2,1 → [4]: → [1]: → _[1]=gen(11) → [2]: → _[1]=gen(10) → _[2]=gen(6) → [3]: → _[1]=gen(9) → _[2]=gen(4) → [4]: → _[1]=gen(5) → [5]: → _[1]=gen(3) → _[2]=gen(8) → [6]: → _[1]=gen(2) → _[2]=gen(7) → [7]: → _[1]=gen(1) → [5]: → _[1]=y5 → _[2]=y4 → _[3]=y3 → _[4]=y2 → _[5]=xy → _[6]=y → _[7]=x4 → _[8]=x3 → _[9]=x2 → _[10]=x → _[11]=1 → [6]: → _[1]=2x2y+5y4 → _[2]=2xy2+5x4 → _[3]=5x5-5y5 → _[4]=10y6+25x3y4 See also: spectrum_lib. |
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