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Engineering - IMSEC Function
Description
The IMSEC function returns the secant of a complex number in x + yi or x + yj text format. The secant of a complex number is defined as the inverse of the cosine. i.e.
secant(z) = 1 / cosine(z)
Syntax
IMSEC (inumber)
Arguments
| Argument | Description | Required/ Optional |
|---|---|---|
| Inumber | A complex number for which you want the 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, IMSEC returns the #NUM! error.
If inumber is a logical value, IMSEC returns the #VALUE! error.
Applicability
Excel 2013, Excel 2016
Example
