Simfit is a free, open-source Windows program for linear algebra, curve fitting, metrics, statistics, and point cloud computing, using a large library of user-defined expressions or models. Simfit was developed by Bill Bardsley, a former University of Manchester mathematics lecturer and now a professor at the University of Chester, United Kingdom. Simfit was initially an educational software package based upon the Laplace model which is a complex system of mathematical functions used to represent real or complex data.
The main purpose of Simfit is to create curve fits to data so that they will fit into a particular specification or predicted form. It is capable of representing a number of complex data types such as the vector graph (Graphing), tensor network (medical), and lattice (Financial). Simfit can also represent mathematically structured data such as x-ray tables, stocks, and weather forecasts.
If you want to download Simfit, the Simfit download page can be found at the Simfit home page. Simfit software is available for both desktop and laptop computers. There is also a free demo version of the software on the Simfit download page. There is also an online community discussion forum where one can participate in the Simfit development process.