描述

The ATAN function returns the arctangent, or inverse tangent, of a number. The returned angle is given in radians between -π/2 and +π/2. The arctangent is the angle whose tangent is number.

语法

ATAN (number)

争论

Argument	描述	Required/Optional
Number	The tangent of the angle you want.	Required

Notes

• 如果您希望将ATAN函数返回的Angular表示为度,则可以将其转换,

  • 使用Excel度数功能(= DEGREES(弧度))

  • ,或乘以180/PI()

• 如果指定的数字未被识别为数字值,则ATAN返回#VALUE!错误

适用性

Excel 2007,Excel 2010,Excel 2013,Excel 2016

Example

JavaScript 中的 ATAN函数 - 无涯教程网无涯教程网提供描述The ATAN function returns the arctangent, or inverse tangent, of a number. T...https://www.learnfk.com/javascript/advanced-excel-math-trignometric-atan-function.html