Applies Toמהדורת מנוי של SharePoint Server SharePoint Server 2019 SharePoint Server 2016 SharePoint Server 2013 SharePoint Server 2013 Enterprise SharePoint ב-Microsoft 365 SharePoint Foundation 2010 SharePoint Server 2010 SharePoint ב-Microsoft 365 Small Business Windows SharePoint Services 3.0

Returns the arctangent, or inverse tangent, of a number. The arctangent is the angle whose tangent is number. The returned angle is given in radians in the range -pi/2 to pi/2.

Syntax

ATAN(number)

Number     is the tangent of the angle you want.

Remark

To express the arctangent in degrees, multiply the result by 180/PI() or use the DEGREES function.

Examples

Formula

Description (Result)

=ATAN(1)

Arctangent of 1 in radians, pi/4 (0.785398)

=ATAN(1)*180/PI()

Arctangent of 1 in degrees (45)

=DEGREES(ATAN(1))

Arctangent of 1 in degrees (45)

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