yes/noで(部分)集合に含まれる要素を定義。set i sector /1*5/ i2(i) sector in group A i3(i) sector in group B;i2(i)$(ord(i) le 2)=yes;i3(i)=not i2(i);display i, i2, i3;とすると、---- 7 SET i sector1, 2, 3, 4, 5---- 7 SET i2 sector in group A1…