Changes for the version 4.3: * need Pentium > 200MHz, >= 64 MB RAM new features: * g*(s) analysis by least-squares * Van Holde-Weischet analysis * continuous c(M) and c(s) distributions by Lamm equation modeling * analysis of floatation coefficients * Monte-Carlo statistics for distribution analysis * include Runs test Z (as described in Straume & Johnson, Methods Enzymol 1992) * calculates automatically confidence intervals for s,M with F-statistics * calculator for frictional ratios, axial ratios * calculator for variance ratios (F-statistics) * avoid negative concentrations by using NNLS from Lawson & Hanson * includes Lamm equations for other geometries (e.g. external loading cells) * subtract blank scan utility * remove integral fringe jump in interference scans utility * scaled residuals bitmap for diagnosing systematic deviations and several bugs were fixed November 29, 1999