Super- and subscripts can be attached to most unary and binary operators. Two examples: &quot; a div_2 b a < csub n b +_2 h &quot; and &quot; a toward csub f b x toward csup f y. &quot;
大部分一元和二元运算符都可以附加上下标。这里有两个例子： &quot; a div_2 b a < csub n b +_2 h &quot; 和 &quot; a toward csub f b x toward csup f y &quot; 。