rpnExpress

rpnExpress is a keyboard-centric calculator which uses the GMP and MPFR libraries to handle the mathematical operations. It supports both RPN and algebraic input mode. It grew out of our own needs for a fast versatile RPN calculator with small memory footprint that can be controlled from the keyboard and supports very large integers. The main features of this calculator are: - All commands are entered from the keyboard, minimising the need to move your hand to the mouse or trackpad. - It can handle very large integers and floating numbers with extreme precision. - Values and command sequences can be saved into named variables and recalled later for calculations. - You can enter and display numbers in any base between 2 and 36 inclusive. - You can group the digits for easier reading of e.g. hex and binary values. - It has both a RPN mode and algebraic mode. - A declaration generator for exporting large integers to C arrays. - It has over 60 powerful functions: -- Number theoretical functions like the Riemann Zeta function -- Primality testing -- Trigonometric functions -- Logical bitwise operations -- Calculator control functions. The complete manual is available at our homepage http://www.ciphic.com/rpnExpress.html You can read it before you buy!