例句與造句

1. Generally, the multiplicative notation is the usual notation for groups, while the additive notation is the usual notation for rings.
2. The additive notation may also be used to emphasize that a particular group is abelian, whenever both abelian and non-abelian groups are considered, some notable exceptions being near-rings and partially ordered groups, where an operation is written additively even when non-abelian.
3. :There is a natural action of R on itself by left multiplication; this action descends to an action of R on R / I by left multiplication . ( Explicitly, r acts on x + I by sending it to rx + I, using the additive notation for cosets.
4. It's difficult to find additive notation in a sentence. 用additive notation造句挺難的