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ATAN function

Returns the arctangent of a number

Returns the arctangent of a number.

Syntax

ATAN(number)

Square brackets indicate optional arguments.

Arguments

ArgumentRequiredMeaning
numberYesThe tangent of the angle you want.1

Try ATAN

Evaluate ATAN with a stated domain

=ATAN(A2)

An input of 2 is the opposite/adjacent ratio. Multiply the radian result by 180/PI() to express degrees. Edit A2 to try another input in the stated domain.

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ATAN · top-level call

=ATAN(A2)

1 / 1 · number

The tangent of the angle you want.

ATAN reference ↗

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Reference and compatibility

Univer 1.0.4 / Apache-2.0. Calculation checks cover the supplied examples only. The browser worksheet does not implement every Excel feature, external service or connected data type.