ESBArSech Function
Returns the inverse hyperbolic secant of X.

Unit
QESBPCSMath

Declaration
Function ESBArSech(const X: Extended): Extended;

Parameters
Value to process.

Category
Arithmetic Routines for Floats

Implementation

function ESBArSech (const X: Extended): Extended;
begin
     if FloatIsZero (X) then
          raise EMathError.Create (rsDivideByZero);

     Result := ESBArCosh (1 / X);
End;


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