Hyperbolic Lemniscate Function
By analogy with the Lemniscate Functions, hyperbolic lemniscate functions can also be defined
 | (1) |
 | (2) |
and 
, and write | (3) |
is the constant obtained by setting 
and 
. Then | (4) |
is a complete Ramanujan 
showed | (5) |
 | (6) |
 | (7) |
References
Berndt, B. C. Ramanujan's Notebooks, Part IV. New York: Springer-Verlag, pp. 255-258, 1994.
- Different Prime Factors
- Digamma Function
- Digimetic
- Digit
- Digitaddition
- Digital Root
- Digon
- Digraph
- Dihedral Angle
- Dihedral Group
- Dijkstra's Algorithm
- Dijkstra Tree
- Dilation
- Dilemma
- Dilogarithm
- Dilworth's Lemma
- Dilworth's Theorem
- Dimension
- Dimensionality Theorem
- Dimension Axiom
- Dimension Invariance Theorem
- Diminished Polyhedron
- Diminished Rhombicosidodecahedron
- Dini Expansion
- Dini's Surface