EvaluatePolynomial Method (Chart2DData)

EvaluatePolynomial(double xvalue, Coefficients() As Double)

Returns the value of the polynomial given by the specified Coefficients for the given independent value.

Function EvaluatePolynomial(XValue As Double, Coefficents) As Double

The index of each element of the Coefficients array matches the power of the independent variable in the term of the polynomial.

For example, to evaluate the polynomial:

Y(X) = 4*X**2 + 3*X + 21 at X=5

Dim c(0 To 2) As Double

Dim xvalue As Double, yvalue as Double

c(0) = 21

c(1) = 3

c(2) = 4

x = 5

yvalue = Chart.ChartGroups(1).Data.EvaluatePolynomial(xvalue, c)