IntegralCi Method (x)

Computes the cosine integral.

Declaration Syntax

Visual Basic

Visual C++

public static double IntegralCi(
	double x
)

Public Shared Function IntegralCi ( _
	x As Double _
) As Double

public:
static double IntegralCi(
	double x
)

static member IntegralCi : 
        x:float -> float

Parameters

x (Double): The argument, which must be non-negative.

Return Value

The value of Ci(x).

Remarks

The cosine integral is defined as:

The cosine integral diverges logrithmically to negative inifity at the origin and executes a damped oscilation arround zero as its argument increases.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	x is negative.