NLREG 6.2 NLREG performs nonlinear regression and curve fitting. NLREG fits a mathematical function whose form you specify to a set of data values. Virtually any type of function can be fitted.
Regression Analysis - CurveFitter 4.5.6 CurveFitter program performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions.
Creo Elements/Direct Modeling Personal Edition - a free 3D CAD tool for all of your modeling needs! If you’ve always thought that 3D CAD software is complex, cumbersome and unreasonably expensive, it’s time for you to find out that there is an alternative that has neither of these characteristics and offers tons of functionality free of charge! Creo Elements/Direct Modeling Personal Edition is a freeware 3D CAD solution that enables you to create models containing up to 60 parts quickly and efficiently
FindGraph - a powerful graphing and curve-fitting tool for all your graph-related needs As an engineer, a scientist of a student of a technical college, you probably deal with graphs a lot more often than you’d like to. However, graphs are an integral part of any technical discipline, and it takes time to learn to plot, compare and read them quickly. If you are looking for a software tool that will greatly facilitate your graph-related activities, make sure you don’t miss FindGraph