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Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, iPadOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys.
Problems can occur because, for anything but the simplest calculation, in order to work out the value of a written formula, the user of a button-operated calculator is required to: Rearrange the formula so that the value can be calculated by pressing buttons one at a time, while taking operator precedence and parentheses into account.
RPN 28x Calc - A scientific calculator with a nostalgic, HP-28S-like interface for iPad. Halcyon Calc - for iPhone, iPod Touch and iPad. Emu42 - A Windows-based open-source emulator for the Hewlett-Packard Pioneer series of calculators (HP-10B, HP-14B, HP-17B, HP-17BII, HP-20S, HP-21S, HP-22S, HP-32S, HP-32SII, HP-27S and HP-42S) and the HP ...
Casio fx-77, a solar-powered digital calculator from the 1980s using a single-line LCD. A scientific calculator is an electronic calculator, either desktop or handheld, designed to perform calculations using basic (addition, subtraction, multiplication, division) and advanced (trigonometric, hyperbolic, etc.) mathematical operations and functions.
The pocket-sized Hewlett-Packard HP-35 scientific calculator was the first handheld device of its type, but it cost US$395 in 1972. This was justifiable for some engineering professionals, but too expensive for most students. Around 1974, lower-cost handheld electronic scientific calculators started to make slide rules largely obsolete.
Joe Raedle/Getty Images Extra Meat, Extra Cheese, Extra Inflation There are few restaurants of any variety as beloved as Chipotle in this country, and value is a big reason for a lot of people.
On their first day on the job, they received a 911 call and immediately went to work with the firefighters to help the woman in need. But on the way, the Corgis decide to make a pitstop. Watch on ...
Formula weight calculator: The input is a chemical molecular formula, using the periodic-table symbols and notation, and there is a button to work out the percentages of its constituents. Astronomical calculator : The input is a date and one or multiple celestial bodies (usually the sun, moon, planets, planetoids or comets).