Alt1 can be an interesting alternative to the system calculator, especially if, in addition to standard calculations, we also perform advanced mathematical activities. After starting Alt1 appears in the system tray, from which you can call it in two ways: either by left-clicking on the program icon or by using a simple combination of "ALT+1" buttons.

Importantly, when entering various values in the program window, we no longer have to click on any confirmation button, because all calculations are performed in real time. Alt1 appears by default in the lower right corner of the screen, but if you want, you can change the size and location of the window. It is also worth mentioning that icons such as CLR allow you to properly delete all values together with the history and hide the program.