WJcn WJdn WJsn

WJsn() Function WJsn ( U As  Double, K As  Double  ) Jacobi elliptic functions sn(u, k) Purpose WJsn computes the Jacobi elliptic functions sn(u, k). The function is defined as follows, given: u = ∫ 1/√(1 - k^2(sin(t))^2) dt [0, φ] The angle φ is called the amplitude and: sn(u, k) = sinφ Returns Jacobi elliptic functions sn(u, k). Parameters [in] U Argument u. [in] K Argument k. Reference boost/math/special_functions