3 ms·
In this context, what is a ring?
by wodenokoto 6y ago
In this context, what is a ring?
- amluto 6y agohttps://en.m.wikipedia.org/wiki/Ring_(mathematics) https://en.m.wikipedia.org/wiki/Ring_(mathematics)
- deleted 6y ago[deleted]
- mafaa 6y agohttps://en.m.wikipedia.org/wiki/Ring_(mathematics) https://en.m.wikipedia.org/wiki/Ring_(mathematics) it’s a little hard to describe as it’s fairly abstract. It’s a structure that is subset of abelian groups (groups where operations on elements of the group don’t depend on the order written, ie x+y = y+x). For example the set of ints with “normal” addition and multiplication is a communicative ring
- cozzyd 6y agoDepends on if the context is dwarves or group theory.
- drdeca 6y agoA set equipped with operations addition , negation, multiplication, and often a 1 as an identity element of the multiplication, where the addition is associative and commutative and has the negation as its inverse, and the multiplication distributed over the addition. Sometimes people don’t always require that they include a unit for the multiplication. An example of a ring is the set of integers, as is the set of integers mod 6, as is any field. A non-example is the set of non-negative integers.
- ogogmad 6y agoA number system with a notion of addition and multiplication. Examples are the integers, rationals, complex numbers, polynomials over any of the above, and so on. From a programming point of view, imagine a type with an overloaded + and * operator. You'll be close.