gives the hyperbolic secant of z.


  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • .
  • 1/Cosh[z] is automatically converted to Sech[z]. TrigFactorList[expr] does decomposition.
  • For certain special arguments, Sech automatically evaluates to exact values.
  • Sech can be evaluated to arbitrary numerical precision.
  • Sech automatically threads over lists.
New in 1 | Last modified in 3
New to Mathematica? Find your learning path »
Have a question? Ask support »