A hotkey or a click on a tray icon starts the calculation dialog for your math formula. The dialog is generated out of the formula. Just enter the actual parameters and CalcExpress displays the result it displays a small graph when a range is input it displays a table when a two ranges are input it rounds to the number of digits specified it memorizes the last variable input and the position of the dialog.

saves important changed or new files into zip archives with one click or at predefined times automatically uses file filters to exclude/include files creates incremental and complete archives restores to the most recent version, or to previous dates, or selected files only does not require an installation for restoration