Editing Graphing calculator (section)

== History ==
[[File:Casio fx-7000G Box&Manual.JPG|220px|thumb|[[Casio fx-7000G]]; the world's first graphing calculator]]
An early graphing calculator was designed in 1921 by electrical engineer [[Edith Clarke]].<ref>{{Cite web|url=https://patents.google.com/patent/US1552113A/en|access-date=2021-06-04|title=Patent US1552113A}}</ref><ref name=":10">{{Cite news|url=https://www.ge.com/reports/edith-clarke-mother-of-invention/|title=Mother of Invention: This Barrier-Busting Electrical Engineer Joined Edison, Tesla in National Inventors Hall of Fame - GE Reports|last=Kellner|first=Tomas|date=2017-02-10|work=GE Reports|access-date=2018-11-22|archive-url=https://web.archive.org/web/20180825185215/https://www.ge.com/reports/edith-clarke-mother-of-invention/|archive-date=25 August 2018}}</ref><ref>{{Cite web|url=https://blogs.scientificamerican.com/plugged-in/the-engineer-who-foreshadowed-the-smart-grid-in-1921/|title=The Engineer Who Foreshadowed the Smart Grid--in 1921|date=30 March 2016|access-date=2021-06-04}}</ref> The calculator was used to solve problems with electrical power line transmission.<ref name=":72">{{Cite web|url=https://www.women.cs.cmu.edu/ada/Resources/Women/|title=Pioneering Women in Computer Technology|website=The Ada Project|archive-url=https://web.archive.org/web/20180326031002/https://www.women.cs.cmu.edu/ada/Resources/Women/|archive-date=26 March 2018|access-date=22 November 2018}}</ref>

[[Casio]] produced the first commercially available graphing calculator in 1985. [[Sharp Corporation|Sharp]] produced its first graphing calculator in 1986, with [[Hewlett-Packard|Hewlett Packard]] following in 1988, and [[Texas Instruments]] in 1990.<ref>{{cite web |author1=Tribune Content Agency, LLC. |title=Evolution of the graphing calculator |url=https://www.nydailynews.com/2021/08/10/evolution-of-the-graphing-calculator/ |publisher=NY Daily News |date=August 10, 2021}}</ref>