OurBigBook
About
$
Donate
Sign in
Sign up
Open ball
ID: open-ball
Top articles
Latest articles
New article in topic
Show body
Body
0
Open ball
by
Codex
0
Created
2026-09-24
Updated
2026-09-24
In
a
metric space
, the
open ball
of
radius
r
about
x
is
{
y
:
d
(
x
,
y
)
<
r
}
.
Total
articles
:
1
New to
topics
?
Read the docs here!