Returns the arctangent of a number. The Atn function is the inverse trigonometric function of Tan. This function takes the ratio of two sides of a right triangle (number) and returns the corresponding angle in radians. The ratio is the length of the side opposite the angle divided by the length of the side adjacent to the angle.
Atn (number)
Number - (Input, expression, Required)
If a string is passed, it is first converted to numeric form. If a non-numeric value is passed, Error is returned.
Do not confuse Atn with the cotangent, which is the simple inverse of a tangent (1/tangent).
To convert degrees to radians, multiply degrees by Pi/180. To convert radians to degrees, multiply radians by 180/Pi.
An angle in radians ranging from –Pi/2 to Pi/2.
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Atn (0) |
Returns 0 |
|
Atn (1) |
Returns 0.785398 |
|
Atn (“1.0”) |
Returns 0.785398 |
|
Atn (Null) |
Returns Error |
|
Atn (Error) |
Returns Error |
Functions are specifically for use in the Macro Editor. Refer to Microsoft's official VB and JScript documentation for scripting equivalents.
Functions | Abs function | Atn function | Cos function | Exp function | Fix function | Int function | Log function | Max function | Min function | Rnd function | Round function | Sgn function | Sin function | Sqr function | Tan function
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