From Software Informer
Calculator
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Scientific Calculator view | | Developed by | Apple Inc. |
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| Latest release | 4.2 (4.2)) / October 26, 2007 |
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| Operating system | Mac OS X |
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| Type | Calculator |
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| License | Proprietary |
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| Website | http://www.apple.com |
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Calculator is a basic calculator application made by Apple and bundled with Mac OS X. It has three modes: basic, scientific, and programmer. Basic includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys. Scientific mode supports exponents and trigonometric functions, and programmer mode gives the user access to more options related to computer programming.
The Calculator program has a long history going back to the very beginning of the Macintosh platform, where a simple four-function calculator program was a standard desk accessory from the earliest system versions. Though no higher math capability was included, third-party developers provided upgrades, and Apple released the Graphing Calculator application with the first PowerPC release (7.1.2) of the Mac OS, and it was a standard component through Mac OS 9. Apple currently ships a different application called Grapher.
Calculator has Reverse Polish notation support, and can also speak the buttons pressed and result returned.
The calculator also includes some basic conversion functions to convert between units in the following categories:
- Area
- Currency
- Energy or Work
- Temperature
- Length
- Speed
- Pressure
- Weight/Mass
- Power
- Volume
Currency exchange rates may be updated from the Internet.
[edit] History
 Calculator for classic Mac OS, version 7.5, 1994 The Calculator appeared first as a desk accessory in first version of Macintosh System for the 1984 Macintosh 128k and was mantained with the same basic math operations until the final release of classic Mac OS in 2002.
[edit] Dashboard widget
 The Dashboard Calculator widget. A Dashboard Calculator widget is included with Mac OS X Tiger and later. It only has the basic mode of its desktop counterpart.
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