Returns the cotangent of a number.

numberThe number you want the cotangent of.

* For an illustrated example refer to the [[Trigonometric Functions]] page.
* The inverse of this function is the ACOT function.
* The "number" is the angle in radians.
* If "number" is not numeric, then #VALUE is returned.
* If "number" is zero, then #DIV/0! is returned.
* If "number" < -2 E10, then #NUM is returned.
* If "number" > 2 E10, then #NUM is returned.
* If your argument is in degrees, multiply it by PI/180 to convert it to radians.
* You can use the CSC function to cosecant.
* You can use the DEGREES function to convert from radians to degrees.
* You can use the RADIANS function to convert from degreed to radians.
* You can use the SEC function to secant.
* This function was added in Excel 2013.
* For the Microsoft documentation refer to
* For the Google documentation refer to

1=COT(ACOT(0.014)) = 0.014
2=COT(-PI()/4) = -1.000
3=COT(RADIANS(45)) = 1.000
4=COT("some text") = #VALUE!
5=COT(0) = #DIV/0!
6=COT(2E+29) = #NUM!

1 - What is the cotangent of 0 radians.

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