Smartsite Documentatie > Advanced > Developer > Class Library Reference > Smartsite.Runtime.Modules Namespace > MathViperModule Class > MathViperModule Methods > Acos Method
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Returns the angle whose cosine is the specified number.

Namespace: Smartsite.Runtime.Modules
Assembly:  Smartsite.Runtime.Modules (in Smartsite.Runtime.Modules.dll)

Syntax

C#Copy imageCopy Code
[(IsDeterministic = true)]
public static double Acos(
	double a
)
Visual Basic (Declaration)Copy imageCopy Code
<(IsDeterministic := True)> _
Public Shared Function Acos ( _
	a As  _
) As

Parameters

a
Double
A number representing a cosine, where -1 ≤ a ≤ 1.

Return Value

An angle, θ, measured in radians, such that 0 ≤ θ ≤ π -or- NaN if a < -1 or a > 1.

See Also

Advanced