Jcd Jcn Jcs Jdc Jdn Jds Jelli Jnc Jnd Jns Jsc Jsd Jsn

Jcs() Function Jcs ( U As  Double, K As  Double, Optional Info As  Long  ) Jacobi elliptic functions cs(u, k) Purpose This routine computes the Jacobi elliptic functions cs(u, k). The function is defined as follows: cs(u, k) = cn(u, k) / sn(u, k) Returns Double cs(u, k). Parameters [in] U Argument u. [in] K Argument k. [out] Info (Optional) = 0: Successful exit. = 1: Floating point range error. Reference boost/math/special_functions