Public Shared Sub AddTangentSum( _
   ByVal tanCoeff() As Double, _
   ByVal coefficient() As Double, _
   ByVal constant() As Double, _
   ByVal exponent() As Double _
) 

Visual Basic (Usage)	Copy Code
Dim tanCoeff() As Double Dim coefficient() As Double Dim constant() As Double Dim exponent() As Double   ForecastEngine.Options.AddTangentSum(tanCoeff, coefficient, constant, exponent)

public static void AddTangentSum( 
   double[] tanCoeff,
   double[] coefficient,
   double[] constant,
   double[] exponent
)

Parameters

tanCoeff

An array where the k-th term is the coefficient of the whole k-th tangent term within the sum.

coefficient

An array where the k-th term is the coefficient of the variable within the k-th tangent term within the sum (i.e. coefficient as shown above).

constant

An array where the k-th term is the constant shift of the tangent function of the k-th term within the sum (i.e. the constant term as shown above).

exponent

An array where the k-th term is the exponent of the tangent term within the k-th element of the sum (i.e. n as shown above).

tanCoeff * (tann (coefficient * x + constant)),

where the Tangent function is in terms of radians.

Notes on the Radian measure

Radians are a means by which to describe the angle and are related to the more commonly used degrees as follows:

360 degrees = 2 * Pi * radians

therefore, 1 radian = 180 / Pi degrees = 57.295... degrees.

Reference