Tests if a
is zero.
Tests if a
is zero.
Given a sequence of as
, compute the sum.
Given a sequence of as
, compute the sum.
Given a sequence of as
, combine them and return the total.
Given a sequence of as
, combine them and return the total.
If the sequence is empty, returns None. Otherwise, returns Some(total).
Given a sequence of as
, combine them and return the total.
Given a sequence of as
, combine them and return the total.
If the sequence is empty, returns None. Otherwise, returns Some(total).
Semiring consists of:
Alternately, a Semiring can be thought of as a ring without a multiplicative identity or an additive inverse.
A Semiring with an additive inverse (-) is a Rng. A Semiring with a multiplicative identity (1) is a Rig. A Semiring with both of those is a Ring.