How to read this manual

After this introduction, read entire Chapter 2, Using fityk. It is also recommended to read Chapter 3, Command reference , especially the section called “General syntax ”, the section called “Sum of fitting functions ” and, if your field is crystallography, reading the section called “Module for crystallography” is a must. Note, that menu commands and toolbar buttons are generally not explained, because they are either intuitive and self-explaining or analogical to textual commands, that have accurate description.