%0 Conference Article %T APPROXIMATION OF EXPERIMENTAL DATA USING C# %A Poluektov, A.V. %A Sucharski, A.V. %A Makarenko, F.V. %K approximation, least squares method, C#, Math.NET Numerics, linear regression, polynomial regression, approximation error, standard error, coefficient of determination, condition number, overfitting, QR decomposition, SVD %J MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2026 %D 2026 %P 8 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov