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
https://www.learnfk.com/javascript/advanced-excel-math-trignometric-atan-function.html