PSI-Plot 8.8

PSI-Plot 8.8 is a technical plotting and data processing package for Windows. Features include simplex and Powell methods for nonlinear fitting, dose-response analysis, Weibull analysis, Kaplan-Meier survival estimates, over 100 predefined fitting models, and a plot wizard. It includes a comprehensive data sheet that performs data transformation, data interpolation and curve fitting, numerical integration and differentiation, experimental model development, FFT and digital signal processing, matrix manipulation, calculation of eigen-system, and commonly used statistical analysis. It also comes with a set of numerical tools to solve algebraic equations, ordinary differential equations, and difference equations.