**31.1****
****Creating PolynomialLeastSquares** (.NET, C#, CSharp, VB, Visual Basic, F#)

A **PolynomialLeastSquares**
is constructed from paired vectors of known *x*-
and *y*-values, and the desired degree
of the fitted polynomial. For example, this code fits a cubic:

Code Example – C# polynomial fit

int degree = 4; var fit = new PolynomialLeastSquares( degree, x, y );

Code Example – VB polynomial fit

Dim Degree = 4 Dim Fit As New PolynomialLeastSquares(Degree, X, Y)