ATAN function - Zoho Sheet - Help Guide

ATAN

Returns the inverse tangent (the a rctangent) of a number. The output is a value between -pi/2 and +pi/2.

 

Syntax

 

ATAN(number)

number: The number (tan value) whose inverse tan you want to calculate. Eg., -2

Remarks

  • To return the angle in degrees, use the DEGREES function or multiply the given it by 180/PI().

 

Examples

  

Formula

Result

=ATAN(0.5)

0.463647609

=ATAN(-2)

-1.107148718

=ATAN(3/2)

0.982793723


Get a hands-on experience of the function in the embedded range below. 



Possible Errors

 

Errors

Meaning

#N/A!

  • The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.

#NAME!

  • The function name is incorrect or invalid.

  • The given defined name (if any) is invalid.

  • There is a typo in the defined name used in the function.

  • Double quotes are missing for text values in the function.

  • Colon missing in a cell range reference.

#VALUE!

  • The given argument's data type is incorrect or invalid.
    For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.

#REF!

  • The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.

 

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