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DLMF:19.12.E1
(Q6994)
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Also known as
English
DLMF:19.12.E1
No description defined
Statements
DLMF defining formula
K
(
k
)
=
∑
m
=
0
∞
(
1
2
)
m
(
1
2
)
m
m
!
m
!
k
′
2
m
(
ln
(
1
k
′
)
+
d
(
m
)
)
,
complete-elliptic-integral-first-kind-K
𝑘
superscript
subscript
𝑚
0
Pochhammer
1
2
𝑚
Pochhammer
1
2
𝑚
𝑚
𝑚
superscript
superscript
𝑘
′
2
𝑚
1
superscript
𝑘
′
𝑑
𝑚
{\displaystyle{\displaystyle K\left(k\right)=\sum_{m=0}^{\infty}\frac{{\left(% \tfrac{1}{2}\right)_{m}}{\left(\tfrac{1}{2}\right)_{m}}}{m!\;m!}{k^{\prime}}^{% 2m}\left(\ln\left(\frac{1}{k^{\prime}}\right)+d(m)\right),}}
0 references
constraint
0
<
|
k
′
|
<
1
0
superscript
𝑘
′
1
{\displaystyle{\displaystyle 0<|k^{\prime}|<1}}
0 references
Symbols used
Q10733
DLMF defining formula
(
a
)
n
Pochhammer
𝑎
𝑛
{\displaystyle{\displaystyle{\left(\NVar{a}\right)_{\NVar{n}}}}}
xml-id
C5.S2.SS3.m1adec
0 references
Legendre’s complete elliptic integral of the first kind
DLMF defining formula
K
(
k
)
complete-elliptic-integral-first-kind-K
𝑘
{\displaystyle{\displaystyle K\left(\NVar{k}\right)}}
xml-id
C19.S2.E8.m1adec
0 references
Q10729
DLMF defining formula
!
{\displaystyle{\displaystyle!}}
xml-id
introduction.Sx4.p1.t1.r15.m5adec
0 references
principal branch of logarithm function
DLMF defining formula
ln
z
𝑧
{\displaystyle{\displaystyle\ln\NVar{z}}}
xml-id
C4.S2.E2.m2adec
0 references
nonnegative integer
DLMF defining formula
m
𝑚
{\displaystyle{\displaystyle m}}
xml-id
C19.S1.XMD2.m1dec
0 references
real or complex modulus
DLMF defining formula
k
𝑘
{\displaystyle{\displaystyle k}}
xml-id
C19.S1.XMD5.m1dec
0 references
complementary modulus
DLMF defining formula
k
′
superscript
𝑘
′
{\displaystyle{\displaystyle k^{\prime}}}
xml-id
C19.S1.XMD6.m1dec
0 references
function
DLMF defining formula
d
(
m
)
𝑑
𝑚
{\displaystyle{\displaystyle d(m)}}
xml-id
C19.S12.XMD1.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
19.12.E1
0 references
Sitelinks
Mathematics
(1 entry)
mardi
Formula:6994
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