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JacobiCN

JacobiCN[u, m]
gives the Jacobi elliptic function cn(u|m).
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • cn(u|m)=cos(phi), where phi=am(u❘m).
  • cn(u❘m) is a doubly periodic function in u with periods 4 K(m) and 4 i K(1-m), where K is the elliptic integral EllipticK.
  • JacobiCN is a meromorphic function in both arguments.
  • For certain special arguments, JacobiCN automatically evaluates to exact values.
  • JacobiCN can be evaluated to arbitrary numerical precision.
  • JacobiCN automatically threads over lists.
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