1.AdjectiveOf a map
f
:
R
→
Y
{\displaystyle f:{\textbf {R}}\to Y}
, having constants 0}">
K
>
0
{\displaystyle K>0}
0}"> and
C
≥
0
{\displaystyle C\geq 0}
such that
1
K
d
(
x
,
y
)
−
C
≤
d
(
f
(
x
)
,
f
(
y
)
)
≤
K
d
(
x
,
y
)
+
C
.
{\displaystyle {1 \over K}d(x,y)-C\leq d(f(x),f(y))\leq Kd(x,y)+C.}