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Access: Atn Function


In Access, the Atn function returns the arctangent of a number.

The syntax for the Atn function is:

Atn ( number )

number is a numeric expression.


For example:

Atn (2) would return 1.10714871779409
Atn (2.51) would return 1.19166451926354
Atn (-3.25) would return -1.27229739520872

VBA Code

The Atn function can be used in VBA code. For example:

Dim LNumber As Double

LNumber = Atn (210)

In this example, the variable called LNumber would now contain the value of 1.56603445802574.


SQL/Queries

You can also use the Atn function in a query.