Zero
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Number
0
Definition
The neutral element of addition in the ring of integers.
Programs
(P1)
Sage
numbers = [0]
Links
Similar tables
integers —   includes $0$ as its entry $n=0$
Data properties
Entries are of type: integer
Table is complete: yes (it holds the single number named by the definition)
How they were obtained:

An exact value -- an integer, a rational or a polynomial -- so there is no precision to choose and nothing to be wrong about.