Math and Trignometric - SECH Function

Description

The SECH function returns the hyperbolic secant of an angle. The hyperbolic secant is the reciprocal of the hyperbolic cosine. Hence, the value of the hyperbolic secant is given by the equation −

$$\sinh \left ( x \right ) = \frac{1}{\cosh \left ( x \right )} = \frac{2}{e^x+e^{-x}}$$

Syntax

SECH (number)

Arguments

Notes

• The absolute value of number must be less than 2^27

• If the angle is in degrees, either multiply the angle by PI()/180 or use the RADIANS Function to covert the angle to radians

  = RADIANS (degrees)

• If number is outside of its constraints, SECH returns the #NUM! error value.

• If number is a non-numeric value, SECH returns the #VALUE! error values.

Applicability

Excel 2013, Excel 2016

Example