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<< Click to Display Table of Contents >> ATAN (arctangent) |
Syntax:
ATAN(number)
Description:
The ATAN function (arctangent) is the inverse function of the TAN function: It returns the inverse tangent of a number – that is, the angle whose tangent is the Number.
The result is expressed in radians.
Example:
ATAN(1) returns 0.7854 (45°)
ATAN(TAN(0.1234)) returns 0.1234
Tip:
You can use the DEGREES function to convert the result from radians to degrees.
See also: