ATAN

Definition: ATAN is a function that returns the inverse tangent of a number. The inverse tangent of a number is the angle whose tangent is a given number.

Syntax: =ATAN(number)

Situation: This formula is suitable when you need to find the angle whose tangent is a given number.

Example: If the tangent of an angle is 1, the angle can be found using the formula =ATAN(1), which returns a value of 45 degrees.