the algebra fx 2.0 series incorporates a black-and-white lcd dot-matrix display with a graphic resolution of 128 by 64 pixels. the calculators can display up to 21 characters on each of their 8 display lines. the main menu consists of icons referring to different operating modes and applications. inside each mode, the bottom line is reserved for up to 6 function key menu tips, which can be selected from buttons f1 to f6 on the calculator's keyboard. the display's contrast can be adjusted from a system manager menu.