| LIB "brnoeth.lib";
int plevel=printlevel;
printlevel=-1;
ring s=2,(x,y),lp;
list HC=Adj_div(x3+y2+y);
→ The genus of the curve is 1
HC=NSplaces(1..2,HC);
HC=extcurve(2,HC);
→ Total number of rational places : NrRatPl = 9
def ER=HC[1][4];
setring ER;
intvec G=5; // the rational divisor G = 5*HC[3][1]
intvec D=2..9; // D = sum of the rational places no. 2..9 over F_4
// let us construct the corresponding residual AG code :
matrix C=AGcode_Omega(G,D,HC);
→ Vector basis successfully computed
// here is a linear code of type [8,3,>=5] over F_4
print(C);
→ 0, (a),(a),(a), (a+1),1,0, 0,
→ (a+1),1, (a),0, (a), 0,(a),0,
→ (a+1),0, (a),(a+1),(a+1),0,0, 1
printlevel=plevel;
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