1 | Return-Path: shosh@irisplot.math.arizona.edu
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2 | Date: Fri, 7 Feb 1997 14:23:19 -0700 (MST)
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3 | From: Alexander Shoshitaishvili <shosh@math.arizona.edu>
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4 | To: rychlik@math.arizona.edu
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5 | Subject: file for maple
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6 |
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7 | with(grobner):
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8 | Vars:= [u12,u13,u14,u23,u24,u34,v12,v13,v14,v23,v24,v34,e1,e2,e3,e4,h1,h2,h3,
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9 | h4,x1,x2,x3,x4,y1,y2,y3,y4];
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10 | f12:=1-u12*(x1-x2)-v12*(y1-y2);
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11 | f13:=1-u13*(x1-x3)-v13*(y1-y3);
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12 | f14:=1-u14*(x1-x4)-v14*(y1-y4);
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13 | f23:=1-u23*(x2-x3)-v23*(y2-y3);
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14 | f24:=1-u24*(x2-x4)-v24*(y2-y4);
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15 | f34:=1-u34*(x3-x4)-v34*(y3-y4);
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16 | a1:=x1^2+e1+e2*x1+e3*y1+e4*x1*y1;
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17 | a2:=y1^2+h1+h2*x1+h3*y1+h4*x1*y1;
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18 | b1:=x2^2+e1+e2*x2+e3*y2+e4*x2*y2;
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19 | b2:=y2^2+h1+h2*x2+h3*y2+h4*x2*y2;
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20 | c1:=x3^2+e1+e2*x3+e3*y3+e4*x3*y3;
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21 | c2:=y3^2+h1+h2*x3+h3*y3+h4*x3*y3;
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22 | d1:=x4^2+e1+e2*x4+e3*y4+e4*x4*y4;
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23 | d2:=y4^2+h1+h2*x4+h3*y4+h4*x4*y4;
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24 | F:=[f12,f13,f14,f23,f24,f34,a1,a2,b1,b2,c1,c2,d1,d2];
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25 | Gb:=gbasis(F,Vars,plex);
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