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Engineering - IMSECH Function
Description
The IMSECH function returns the hyperbolic secant of a complex number in x+yi or x+yj text format. The hyperbolic secant of a complex number is defined as the inverse of the hyperbolic cosine i.e.
sech(z) = 1 / cosh(z)
Syntax
IMSECH (inumber)
Arguments
| Argument | Description | Required/ Optional |
|---|---|---|
| Inumber | A complex number for which you want the hyperbolic secant. | Required |
Notes
Complex Numbers in Excel are simply stored as text.
When a text string in the format "a + bi" or "a + bj" is supplied to one of Excel's built-in Complex Number Functions, this is interpreted as a complex number.
The complex number functions can accept a simple numeric value, as this is equivalent to a complex number whose imaginary coefficient is equal to 0.
Use COMPLEX to convert real and imaginary coefficients into a complex number.
If inumber is not recognized as a complex number, IMSECH returns the #NUM! error.
If inumber is a logical value, IMSECH returns the #VALUE! error.
Applicability
Excel 2013, Excel 2016
Example
