Sech

Sech[z]
gives the hyperbolic secant of z.

DetailsDetails

  • 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.
Introduced in 1988
(1.0)
| Updated in 1996
(3.0)