Applies ToSharePoint Server 订阅版 SharePoint Server 2019 SharePoint Server 2016 SharePoint Server 2013 SharePoint Server 2013 企业版 Microsoft 365 中的 SharePoint SharePoint Foundation 2010 SharePoint Server 2010 Microsoft 365 小型企业版中的 SharePoint 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)

需要更多帮助?

需要更多选项?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.