Welcome to the Harris Geospatial product documentation center. Here you will find reference guides, help documents, and product libraries.


  >  Docs Center  >  Libraries  >  JBIU  >  SECH

SECH

SECH

Name


    SECH

Purpose


    Calculates the hyperbolic inverse cosine function (sech).

Category


    Math

Calling Sequence


    Result = SECH(X)

Inputs


    X: Argument to sech (may be an array).

Outputs


    1 / cosh(X)

Example


    IDL> PRINT, SECH(1.)
        0.648054

Modification History


    Written by: Jeremy Bailin
    12 June 2008 Public release in JBIU



© 2018 Harris Geospatial Solutions, Inc. |  Legal
My Account    |    Store    |    Contact Us