Arity is a calculator app that's fast, easy to use, and powerful.
It uses the Arity arithmetic engine.
· open source (Apache 2).
· tiny (2K SLOC and 50KB binary)
· user defined functions and variables
· complex numbers
· basic function graphing
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Supported operating systems:
Google Android 1.0, Google Android 1.5, Google Android 1.6, Google Android 10.x, Google Android 2.0, Google Android 2.1, Google Android 2.2, Google Android 2.3, Google Android 3.0, Google Android 3.1, Google Android 3.2, Google Android 4.0, Google Android 4.1, Google Android 4.2, Google Android 4.3, Google Android 4.4, Google Android 5.x, Google Android 6.x, Google Android 7.x, Google Android 8.x, Google Android 9.x
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Built-in functions include trigonometric and hyperbolic functions, logarithms and exponentiation, permutations, combinations and factorial
