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2. Calculator - Wikipedia

   en.wikipedia.org/wiki/Calculator

   A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics . The first solid-state electronic calculator was created in the early 1960s. Pocket-sized devices became available in the 1970s, especially after the ...

3. Scientific calculator - Wikipedia

   en.wikipedia.org/wiki/Scientific_calculator

   A scientific calculator is an electronic calculator, either desktop or handheld, designed to perform calculations using basic ( addition, subtraction, multiplication, division) and complex ( trigonometric, hyperbolic, etc.) mathematical operations and functions. They have completely replaced slide rules as well as books of mathematical tables ...

4. Graphing calculator - Wikipedia

   en.wikipedia.org/wiki/Graphing_calculator

   Graphing calculator. A graphing calculator (also graphics calculator or graphic display calculator) is a handheld computer that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables. Most popular graphing calculators are programmable calculators, allowing the user to create customized programs ...

5. Math Geeks, Rejoice! The Desmos Graphing Calculator Is Here ...

   techcrunch.com/2011/06/24/desmos-graphing-calculator

   The Desmos Graphing Calculator Is Here, It's Online And It's Free. Erick Schonfeld. 9:07 AM PDT • June 24, 2011 ... Desmos has now taken that and rewritten it as a standalone online graphing ...

6. Desmos - Wikipedia

   en.wikipedia.org/wiki/Desmos

   Desmos was founded by Eli Luberoff, a math and physics double major from Yale University, [ 3] and was launched as a startup at TechCrunch 's Disrupt New York conference in 2011. [ 4] As of September 2012, it had received around 1 million US dollars of funding from Kapor Capital, Learn Capital, Kindler Capital, Elm Street Ventures and Google ...

7. The Internet Archive's Calculator Drawer lets you relive high ...

   www.engadget.com/the-internet-archives...

   The oldest calculator in the database dates back to 1989. If you’ve been reading Engadget for a while, there’s a good chance your high school education involved using a scientific or graphing ...