A FREE Win32 Scientific Math DLL for Windows 9X and Windows NT. This DLL contains two math functions: 1) Significant Figures (sigfig) convertor, with a built-in Scientific Notation Filter. 2) Linear Regression (Least-Squares) with slope, y-intercept, regression coeficient, and correlation coeficient calculations. The Sigfig DLL is fast and easy to use, try it!