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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.
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