WorksheetFunction.Acos Method (Excel)
Returns the arccosine, or inverse cosine, of a number. The arccosine is the angle whose cosine is Arg1. The returned angle is given in radians in the range 0 (zero) to pi.
Syntax
expression .Acos(Arg1)
expression A variable that represents a WorksheetFunction object.
Parameters
Name |
Required/Optional |
Data Type |
Description |
|---|---|---|---|
Arg1 |
Required |
Double |
The cosine of the angle you want and must be from -1 to 1. |
Return Value
Double
Remarks
If you want to convert the result from radians to degrees, multiply it by 180/PI() or use the Degrees method.