WorksheetFunction.Acos(Double) Method
Definition
Important
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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.
public:
double Acos(double Arg1);public double Acos (double Arg1);Public Function Acos (Arg1 As Double) As DoubleParameters
- Arg1
- Double
The cosine of the angle you want and must be from -1 to 1.
Returns
Remarks
If you want to convert the result from radians to degrees, multiply it by 180/PI() or use the Degrees method.