=COT(number)
=COT(PI()/4)
This formula calculates the cotangent of π/4 radians (45 degrees) and returns the result, which is approximately 1.
=COT(0)
This formula calculates the cotangent of 0 radians (0 degrees) and returns the result, which is an error (#DIV/0!) because the cotangent of 0 radians is undefined.
The COT function calculates the cotangent of a given angle in radians.