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#1 2023-10-09 03:33:59

lanxiyu
Member
Registered: 2022-05-10
Posts: 48

Jacobi elliptic functions identities

Notations:














Specific values:




























Differential equations:





































Pythagoras-like identities:






Opposite angle identities:










Double angle identities:








Half angle identities:








Angle sum and difference identities:









Translation by real quarter-period:






Translation by imaginary quarter-period:








Translation by real half-period:









Translation by imaginary half-period:








Jacobi imaginary transformations:










Jacobi real transformations:





Quadratic transformations:





































Indefinite integrals:















Theta function representations:








Value of Jacobi amplitude:


Degenerate cases:
























Conversion (q = nome, τ = half period ratio, α = modular angle, k = elliptic modulus, k' = complementary elliptic modulus, m = elliptic parameter):







Differential function solution:


Numerical computation of Jacobi elliptic functions
Notation for the theta functions

Last edited by lanxiyu (2024-04-06 07:49:13)

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