Editing Graphing calculator (section)

== Gallery == 
<gallery widths="200px" heights="140px">
File:Casio fx-7000GA.jpg|Casio fx-7000GA, {{Circa|1987}}, an improved version of the fx-7000G 
File:HP-28S calculator, open, power off (24687429911).jpg|HP28S, c. 1989, the first graphing calculator made by [[Hewlett-Packard]]
File:TI-81 Calculator on Graph Screen.jpg|TI-81, c. 1990, the first graphing calculator made by [[Texas Instruments]]
File:HP 48SX front, power on, displaying square root of 88, on white background (27465191295).jpg|HP48 Series, c. 1992, the first graphing calculator by HP to use Reverse Polish Notation (RPN) and also SD card expansion 
File:TI-92, power on, Calc menu open, on white background (25028570574).jpg|TI-92, c. 1996, the first graphing calculator in a PDA form factor, the first graphing calculator to have Computer Algebra System (CAS) and the first graphing calculator to have 3D graphing capability
File:Texas Instruments TI-83, front, power off, on blue background (35579978055).jpg|TI-83, c. 1996, one of the most commercially successful graphing calculators and a forebearer to the more successful TI-84 and TI-84 Plus
File:CasioClassPad300.JPG|Casio Classpad 300, c. 2003, the first graphing calculator with a touchscreen display 
File:Casio GTR fx-CG 20 — Sven Volkens (cropped).jpg|Casio fx-CG 20, c. 2011, the first graphing calculator with a colour display 
</gallery>