Marcin Wojdyr software

Fityk script 0.8.1

Fityk Fityk is a program for nonlinear fitting of analytical functions (especially peak-shaped) to data (usually experimental data).
Price: $GPL, Rating: 8, Downloads: 520 Download

Fityk 1.2.2

Nonlinear curve-fitting and data analysis application
Price: $FREE, Rating: 18, Downloads: 1293 Download