Engineering - IMCOT Function

Description

The IMCOT function returns the cotangent of a complex number in x + yi or x + yj text format.

The cotangent of a complex number is defined as the inverse of the tangent.

i.e. cot(z) = 1 / tan(z)

or, cot(z) = cos(z) / sin(z)

IMCOT (inumber)

Argument	Description	Required/ Optional
Inumber	A complex number for which you want the cotangent.	Required

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, IMCOT returns the #NUM! error.
If inumber is a logical value, IMCOT returns the #VALUE! Error.

Excel 2013, Excel 2016

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