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DLMF:1.5.E28
(Q122)
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DLMF:1.5.E28
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Statements
DLMF defining formula
f
*
(
x
,
y
)
=
{
f
(
x
,
y
)
,
if
(
x
,
y
)
∈
D
,
0
,
if
(
x
,
y
)
∈
R
∖
D
.
superscript
𝑓
𝑥
𝑦
cases
𝑓
𝑥
𝑦
if
(
x
,
y
)
∈
D
0
if
(
x
,
y
)
∈
R
∖
D
.
{\displaystyle{\displaystyle f^{*}(x,y)=\begin{cases}f(x,y),&\mbox{if $(x,y)% \in D$},\\ 0,&\mbox{if $(x,y)\in R\setminus D$.}\end{cases}}}
0 references
comment
Warning: Falling back to standard tex;
0 references
Symbols used
Q10758
DLMF defining formula
∈
{\displaystyle{\displaystyle\in}}
xml-id
introduction.Sx4.p1.t1.r10.m2adec
0 references
Q10751
DLMF defining formula
(
a
,
b
)
𝑎
𝑏
{\displaystyle{\displaystyle(\NVar{a},\NVar{b})}}
xml-id
introduction.Sx4.p1.t1.r29.m6addec
0 references
Q10759
DLMF defining formula
∖
{\displaystyle{\displaystyle\setminus}}
xml-id
introduction.Sx4.p2.t1.r19.m2adec
0 references
closed rectangle
DLMF defining formula
R
𝑅
{\displaystyle{\displaystyle R}}
xml-id
C1.S5.XMD13.m1adec
0 references
region contained in R
DLMF defining formula
D
𝐷
{\displaystyle{\displaystyle D}}
xml-id
C1.S5.XMD14.m1dec
0 references
instance of
Digital Library of Mathematical Functions Formula
0 references
MaRDI profile type
MaRDI formula profile
0 references
Identifiers
Digital Library of Mathematical Functions ID
1.5.E28
0 references
Sitelinks
Mathematics
(1 entry)
mardi
Formula:122
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