Parameter List
Syntax
SECH(number)
number
The value for which you want the hyperbolic secant. For example: 0, 1, -2, A1.
More details
SECH calculates the hyperbolic secant, which equals 1/COSH(number) or 2/(EXP(number) + EXP(-number)). The result is always positive and ranges from 0 to 1, with SECH(0) = 1. As the absolute value of the input increases, the result approaches 0.