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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. Software calculator - Wikipedia

   en.wikipedia.org/wiki/Software_calculator

   GNOME Calculator, a software calculator. A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device. They are among the simpler interactive software tools, and, as such, they provide operations for the user to select one at a time. They can be used to perform any process that ...

4. 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 ...

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

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

   Desmos has now taken that and rewritten it as a standalone online graphing calculator. It instantly draws the equations as you update them, it's free, browser-based, color-coded, and you can share ...

6. 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 ...

7. Test-approved app could kill off the graphing calculator

   www.engadget.com/2017-05-15-test-approved-app...

   Math students have a love-hate relationship with the funky, expensive TI-84 graphing calculators, but thanks to a new deal, they'll soon get a free option. Starting this spring, pupils in 14 US ...

8. Calculator News, Reviews and Information | Engadget

   www.engadget.com/tag/calculator

   Get the latest Calculator info from our tech-obsessed editors with breaking news, in-depth reviews, hands-on videos, and our insights on future products.

9. HP calculators - Wikipedia

   en.wikipedia.org/wiki/HP_calculators

   A scientific calculator with more than 240 built-in functions, with 2 lines × 10 digits LCD. The finance-centric programmable calculator from the Voyager series introduced in the 1980s. The longest running product in the HP calculator line, it remains in production. Various models exist, the latest in 2008.