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WEB 2.0 CALC is an online scientific calculator that can compute algebra, geometry and finance problems. It can also handle calculus, functions, number theory and other advanced math topics. Another option with limited features but similar capabilities is the Alcula scientific calculator.

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Texas Instruments, Hewlett Packard, Casio and Sharp all sell basic scientific calculators at reasonable prices. All are available for purchase from Amazon.com, Staples and Best Buy, as of 2015.

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Free online calculators are similar to the physical calculators that people use at home and at the office. The only difference is that everything is displayed on the computer monitor or tablet screen. You do not need to carry a calculator with you anymore as online calculators are perfect substitute

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Reliable and free online calculators can be found at Calculator.net, web2.0calc.com and Calculator-1.com, as of 2015. These sites provide various easy-to-use calculators for many different occasions.

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Online calculators like the Web 2.0 Scientific Calculator, the variable meta-calculator and the basic Online Calculator are all readily available to the public for free online use in whatever capacity the user desires. The meta-calculator can function as a graphing calculator, a standard calculator,

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Online calculators are used in the same manner as hand-held calculators. Calculations can be formulated online or the calculator can be downloaded to your computer. The numbers that require calculation can be inputted from the computer keyboard. Enlarged versions are available for individuals with w

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Calculators are available online that perform simple arithmetic functions such as addition, subtraction, multiplication and division, in addition to square roots and percentages. Online scientific calculators are used to handle more complex operations involving trigonometric functions, exponents, lo

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To find a free simple interest calculator online, visit math, business software publisher or financial sites, such as WebMath, Money Chimp and Pine Grove Software. The online calculators found on these sites may have different features, such as also calculating future values and daily interest rates

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Find online calculators for determining a person's weight or body mass index on sites such as CDC.gov, NHS.uk, NIH.gov and MayoClinic.org. Body mass index is a formula that compares people's weight to their height based on a predetermined chart of ratios.

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Meta-Calculator and Alcula offer advanced calculators online. Meta-Calculator provides users access to graphing, scientific, matrix and statistics calculators. Alcula, however, provides one scientific calculator that supports many operators, functions and constants, such as trigonometric and statist