Imagine! A multi-purpose calculator with big, easy to use buttons and display, that includes custom function keys, combined with a large set of useful math functions and unit conversions. AlgebraCalc uses algebraic precedence rules to perform calculations. It has a 9-digit display, memory functions, 22 math and trigonometric functions, and 269 unit conversion functions. A set of 8 custom function keys can be assigned up to 24 user-selected functions, which can be easily changed at any time.