This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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gives the inverse hyperbolic secant sech^(-1)(z) of the complex number z.
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • For certain special arguments, ArcSech automatically evaluates to exact values.
  • ArcSech can be evaluated to arbitrary numerical precision.
  • ArcSech automatically threads over lists.
  • ArcSech[z] has branch cut discontinuities in the complex z plane running from -∞ to 0 and +1 to +∞.
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