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>>> T1:={[i,j]->[j,i,0]};
>>> T2:={[i,j]->[j,i,1]};
>>> R2:={[i,j]: 1 <= i,j <= 9};
>>> R3:={[i,j]: 1 <= i,j <= 9 && exists (alpha: j = 2alpha)};
>>> codegen T1:R2,T2:R3;
for(t1 = 1; t1 <= 9; t1++) {
if (intMod(-t1,2) == 0) {
for(t2 = 1; t2 <= 9; t2++) {
s1(t2,t1);
s2(t2,t1);
}
}
if (intMod(-t1-1,2) == 0) {
for(t2 = 1; t2 <= 9; t2++) {
s1(t2,t1);
}
}
}
>>> codegen 2 T1:R2,T2:R3;
for(t1 = 1; t1 <= 9; t1++) {
if (intMod(-t1,2) == 0) {
for(t2 = 1; t2 <= 9; t2++) {
s1(t2,t1);
s2(t2,t1);
}
}
if (intMod(-t1-1,2) == 0) {
for(t2 = 1; t2 <= 9; t2++) {
s1(t2,t1);
}
}
}
|
