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Calculators

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 Websites presented in alphabetical order

Calculating Machines view detail comment email this

Features history and photographs of mechanical calculating machines as well as advertisements, with descriptions, from 1937-1954. Discusses adding machines, calculators, and the earlier devices the abacus and slide rule. Features a bibliography and related sites. From a collector of scientific instruments.
http://www.webcom.com/calc/
Topics: Collectors & Collecting, Mathematics
Last updated Jul 8, 2008


Google Guide: Calculator view detail comment email this

A tip sheet for Google's built-in calculation function. Learn how to use Google to "add up a list of numbers, convert from miles to kilometers, or evaluate some other mathematical expression." From Google Guide. "Google Guide is neither affiliated with nor endorsed by Google." Also includes links to Google's own online help for the calculator.
http://www.googleguide.com/calculator.html
Topics: Mathematics, Ready Reference & Quick Facts, Ready Reference & Quick Facts
Last updated Jul 21, 2005


Martindale's Calculators On-Line Center view detail comment email this

This site contains nearly 20,000 links to online calculators. The collection is organized into several sections: mathematics and statistics; science A-Z; chemistry; physics, astrophysics, and astronomy; engineering A-Z; and electrical and computer engineering. The general calculators category is broken into two parts, A-G and F-H, and includes calculators for almost every imaginable topic--car pricing, traffic noise, cooking measurements, mortgage loans, office space, wind chill, and many, many more.
http://www.martindalecenter.com/Calculators.html
Topics: Consumer Research & Advocacy, Mathematics, Ready Reference & Quick Facts
Last updated Feb 9, 2004


Measure 4 Measure view detail comment email this

An annotated collection of interactive Web sites that "do the work for you": they estimate, calculate, evaluate, and translate everything from an adult's Body Surface Area (BSA) to inflation to Morse Code. Sections include Science and Math, Health, Finance, All 'Round the House, and A Measure of Everything Else. Maintained by Judi Wolinsky, a librarian at Homewood Public Library (Ill.).
http://www.wolinskyweb.net/measure.htm
Topics: Mathematics, Ready Reference & Quick Facts, Ready Reference & Quick Facts
Last updated Jan 11, 2004


The Museum of HP Calculators view detail comment email this

This is an online museum offering extensive, illustrated documentation of almost every electronic calculator made by Hewlett-Packard (HP) since the mid-1960s. There are forums, a classified section, a history of early calculation machines (such as the slide rule), and other information for collectors of early computing technology. Created by a collector who is not affiliated with HP.
http://www.hpmuseum.org
Topics: Mathematics
Last updated Nov 12, 2002


Online Calculators, Conversion Tools, Measurements & Weights view detail comment email this

Resources to calculate a variety of weights and measures. Includes a cost of living calculator, a Roman numeral equivalencies calculator, a time zone converter, mortgage and credit card rates calculations, a currency converter, and a dictionary of most units of measurement found around the world. From the libraries of Western Washington University.
http://lib199.lib.wwu.edu/ref/refmeasure.htm
Topics: Mathematics, Ready Reference & Quick Facts, Ready Reference & Quick Facts
Last updated Apr 2, 2004


QuickMath view detail comment email this

"QuickMath is an automated service for answering common math problems over the internet. ... When you submit a question to QuickMath, it is processed by Mathematica, the largest and most powerful computer algebra package available today. The answer is then sent back to you." Problems may include factoring, graphing, quadratics, inequalities, basic calculus, matrices, and more.
http://quickmath.com/
Topics: Mathematics, Ready Reference & Quick Facts
Last updated May 12, 2005


Simple Interactive Statistical Analysis (SISA) view detail comment email this

"SISA allows you to do statistical analysis directly on the Internet. Click on one of the procedure names ... fill in the form, click the button, and the analysis will take place on the spot." Includes tools for statistics, distributions, and calculations. Each procedure includes a detailed help section. From a statistical research organization in the Netherlands.
http://www.quantitativeskills.com/sisa/
Topics: Mathematics, Ready Reference & Quick Facts, Statistics
Last updated May 15, 2009


TCAEP.co.uk: Science, Maths, Astronomy view detail comment email this

This site features lists of numerical constants and equations used in science and mathematics. Also included are conversion calculators, a dictionary of scientific symbols, and astronomy facts and figures. Searchable and browsable. From the Institute of Physics, London.
http://www.scenta.co.uk/tcaep/
Topics: Astronomy, Mathematics, Ready Reference & Quick Facts, Ready Reference & Quick Facts
Last updated Apr 27, 2005


Vintage Calculator Web Museum view detail comment email this

A virtual museum illustrating and describing "the evolution from mechanical calculator to pocket electronic calculator," covering the late 19th century through 1980. Presents "a selection of hand-operated and electro-mechanical calculators, both desktop and hand-held" (such as the Golden Gem chain adder and the dial stylus Addometer), electronic desktop calculators from the 1960s and 1970s (based on vacuum tubes and transistors), and vintage hand-held calculators, including early programmable calculators form Texas Instruments. From an enthusiast.
http://www.vintagecalculators.com/
Topics: Mathematics
Last updated Aug 13, 2008


Vintage Calculators view detail comment email this

Explores the history of calculating devices beginning 5000 years ago, from the abacus to the invention of the electronic calculator. Includes a drawing or photo of each device, an explanation of how it works, and its inventor. Features a discussion forum, and related links.
http://www.xnumber.com/xnumber/vintage.htm
Topics: Collectors & Collecting, Mathematics
Last updated Sep 19, 2004


Wolfram Alpha view detail comment email this

This "computational knowledge engine ... generates output by doing computations from its own internal knowledge base, instead of searching the web and returning links." Enter queries such as dates, locations, names, and calculations, to get related data. Includes examples by topic, a visual gallery of examples, overview video, and a FAQ and other background about the project. Free for noncommercial use; subscriptions available in the future for enhanced features. From Wolfram Research.
http://www.wolframalpha.com
Topics: Mathematics, Ready Reference & Quick Facts
Last updated Jun 30, 2009




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