# ACOT Function

The ACOT function is one of the math and trigonometry functions. It is used to return the principal value of the arccotangent, or inverse cotangent, of a number. The returned angle is measured in radians in the range 0 to Pi.

The ACOT function syntax is:

ACOT(x)

where x is the cotangent of the angle you wish to find, a numeric value entered manually or included into the cell you make reference to.

To apply the ACOT function,

1. select the cell where you wish to display the result,
2. click the Insert Function icon situated at the top toolbar,
   or right-click within a selected cell and select the Insert Function option from the menu,
   or click the icon situated at the formula bar,
3. select the Math and trigonometry function group from the list,
4. click the ACOT function,
5. enter the required argument,
6. press the Enter button.

The result will be displayed in the selected cell.