WindowCE altready contains a calculator. Nevertheless, this calculator is quite a simple one and can make standard calculations like *, -, /, + and square root extraction. RealCalculator can do much more. It includes: • Scientific calculator • Function plotter • Matrix-calculator • Calculator for complex numbers • Computer-calculator (hex, bin, oct, dec) • Function calculator • Numerical equations solver • Statistic calculator • Metrics-converter Apart from that, it pursuits a different concept: Normally, all input is directly calculated, so you have problems with the sequence of your operations (e.g. * comes before -). RealCalculator stores all input in the input-field(s) and makes the calculation not until you have pressed the "="-button.