ACOT
TheACOT
function returns the inverse cotangent (arccot) of a number in radians. It is the opposite of the COT
function, which takes an angle and returns its cotangent. The function is used in trigonometry to find the angle whose cotangent is a given number.
 How to use
ACOT
formula?  Examples of using
ACOT
formula ACOT
formula not working? Similar formulas to
ACOT
Usage
Use the ACOT
formula with the syntax shown below, it has 1 required parameter:
 value (required):
The numerical value for which to calculate the inverse cotangent. Must be a real number.
Examples
Here are a few example use cases that explain how to use theACOT
formula in Google Sheets.
Calculate the angle from a cotangent value
Given the cotangent of an angle, use the ACOT
function to find the angle in radians.
Calculate the phase angle in an AC circuit
In alternating current (AC) circuits, the phase angle is the difference between the voltage and current waveforms. Use the ACOT
function to calculate the phase angle of a circuit.
Calculate the bearing angle between two points
When given the coordinates of two points on a map, use the ACOT
function to calculate the bearing angle between them. This can help with navigation or calculating distances.
Common Mistakes
ACOT
not working? Here are some common mistakes people make when using the ACOT
Google Sheets Formula:
Using a nonnumeric argument
The ACOT function only accepts numeric arguments. If you provide a nonnumeric argument, such as text or a cell containing text, the function will return a #VALUE! error.
Providing a value outside the domain of the function
The domain of the ACOT function is (∞,1) U (1,∞). If you provide a value outside this range, the function will return a #NUM! error.
Related Formulas
The following functions are similar to ACOT
or are often used with it in a formula:

COT
The
COT
function returns the cotangent of an angle specified in radians. The cotangent is the ratio of the adjacent side of a rightangled triangle to the opposite side, and is the reciprocal of the tangent. 
ATAN
The
ATAN
function returns the arctangent of a value in radians, which is the angle whose tangent is a given value. This function is commonly used in trigonometry and geometry to calculate angles. The returned angle is in the range π/2 to π/2. 
ASIN
The ASIN function returns the arcsine of a value in radians, which is the angle whose sine is the specified value. This function is commonly used in trigonometry and geometry calculations. When used in a formula, the ASIN function takes a single argument, the value for which to calculate the arcsine.

ACOS
The
ACOS
function returns the arccosine of a value, which is the angle in radians whose cosine is the specified value. The function is often used in trigonometry to find the angle of a right triangle given the adjacent and hypotenuse. The value parameter must be a number between 1 and 1.
Learn More
You can learn more about the ACOT
Google Sheets function on Google Support.