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  Representations through equivalent functions
  With inverse function 
   
   With related functions
   Involving cd-1 Involving cn-1 Involving cs-1 Involving dc-1 Involving ds-1 Involving nc-1 Involving nd-1 Involving ns-1 Involving sc-1 Involving sd-1 Involving sn-1 Involving elliptic integrals Involving other related functions |