gives the inverse hyperbolic cosine of the complex number .


  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • For certain special arguments, ArcCosh automatically evaluates to exact values.
  • ArcCosh can be evaluated to arbitrary numerical precision.
  • ArcCosh automatically threads over lists.
  • ArcCosh[z] has a branch cut discontinuity in the complex plane running from to .
Introduced in 1988