Atn - Built-in Arithmetic Function¶

Purpose¶

Atn returns the arctangent (the inverse tangent function) of a number in the range –π/2 to π/2 radians. All results are in radians.

Syntax¶

Atn(num)

Arguments¶

Returns¶

Number

Example¶

Return (4 * Atn(1)) // returns 3.14 (when the field has a 2 decimal format)

Notes¶

• When num cannot be converted to a number, a runtime error is generated.